97499478 has 16 divisors (see below), whose sum is σ = 195168960. Its totient is φ = 32471496.

The previous prime is 97499473. The next prime is 97499587. The reversal of 97499478 is 87499479.

It is a super-2 number, since 2×97499478² = 19012296420544968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97499473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1101 + ... + 14007.

It is an arithmetic number, because the mean of its divisors is an integer number (12198060).

Almost surely, 2^97499478 is an apocalyptic number.

97499478 is an abundant number, since it is smaller than the sum of its proper divisors (97669482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97499478 is a wasteful number, since it uses less digits than its factorization.

97499478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14171.

The product of its digits is 4572288, while the sum is 57.

The square root of 97499478 is about 9874.1823965329. The cubic root of 97499478 is about 460.2573827405.

Subtracting from 97499478 its reverse (87499479), we obtain a palindrome (9999999).

The spelling of 97499478 in words is "ninety-seven million, four hundred ninety-nine thousand, four hundred seventy-eight".