197084669 has 4 divisors (see below), whose sum is σ = 197796444. Its totient is φ = 196372896.

The previous prime is 197084659. The next prime is 197084707. The reversal of 197084669 is 966480791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 966480791 = 1759 ⋅549449.

It can be written as a sum of positive squares in 2 ways, for example, as 20593444 + 176491225 = 4538^2 + 13285^2 .

It is a cyclic number.

It is not a de Polignac number, because 197084669 - 2¹⁶ = 197019133 is a prime.

It is a super-2 number, since 2×197084669² = 77684733509679122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197084659) 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, 355472 + ... + 356025.

It is an arithmetic number, because the mean of its divisors is an integer number (49449111).

Almost surely, 2^197084669 is an apocalyptic number.

It is an amenable number.

197084669 is a deficient number, since it is larger than the sum of its proper divisors (711775).

197084669 is an equidigital number, since it uses as much as digits as its factorization.

197084669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711774.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 197084669 is about 14038.6847318401. The cubic root of 197084669 is about 581.9481350632.

The spelling of 197084669 in words is "one hundred ninety-seven million, eighty-four thousand, six hundred sixty-nine".