197494469 has 4 divisors (see below), whose sum is σ = 198080844. Its totient is φ = 196908096.

The previous prime is 197494463. The next prime is 197494481. The reversal of 197494469 is 964494791.

197494469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964494791 = 13 ⋅74191907.

It can be written as a sum of positive squares in 2 ways, for example, as 45292900 + 152201569 = 6730^2 + 12337^2 .

It is a cyclic number.

It is not a de Polignac number, because 197494469 - 2¹² = 197490373 is a prime.

It is a super-2 number, since 2×197494469² = 78008130571183922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 197494469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197494463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292682 + ... + 293355.

It is an arithmetic number, because the mean of its divisors is an integer number (49520211).

Almost surely, 2^197494469 is an apocalyptic number.

It is an amenable number.

197494469 is a deficient number, since it is larger than the sum of its proper divisors (586375).

197494469 is an equidigital number, since it uses as much as digits as its factorization.

197494469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586374.

The product of its digits is 1959552, while the sum is 53.

The square root of 197494469 is about 14053.2725370285. The cubic root of 197494469 is about 582.3512058936.

The spelling of 197494469 in words is "one hundred ninety-seven million, four hundred ninety-four thousand, four hundred sixty-nine".