478499197 has 4 divisors (see below), whose sum is σ = 521999136. Its totient is φ = 434999260.

The previous prime is 478499191. The next prime is 478499201. The reversal of 478499197 is 791994874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 478499197 - 2¹⁹ = 477974909 is a prime.

It is a super-2 number, since 2×478499197² = 457922963059289618, 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 (478499191) 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, 21749953 + ... + 21749974.

It is an arithmetic number, because the mean of its divisors is an integer number (130499784).

Almost surely, 2^478499197 is an apocalyptic number.

It is an amenable number.

478499197 is a deficient number, since it is larger than the sum of its proper divisors (43499939).

478499197 is a wasteful number, since it uses less digits than its factorization.

478499197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43499938.

The product of its digits is 4572288, while the sum is 58.

The square root of 478499197 is about 21874.6244996343. The cubic root of 478499197 is about 782.1566422211.

It can be divided in two parts, 47849919 and 7, that multiplied together give a palindrome (334949433).

The spelling of 478499197 in words is "four hundred seventy-eight million, four hundred ninety-nine thousand, one hundred ninety-seven".