97518869 has 12 divisors (see below), whose sum is σ = 116209548. Its totient is φ = 81547200.

The previous prime is 97518829. The next prime is 97518871. The reversal of 97518869 is 96881579.

It can be written as a sum of positive squares in 2 ways, for example, as 2845969 + 94672900 = 1687^2 + 9730^2 .

It is not a de Polignac number, because 97518869 - 2¹² = 97514773 is a prime.

It is a super-2 number, since 2×97518869² = 19019859622078322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97518869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97518829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22262 + ... + 26279.

It is an arithmetic number, because the mean of its divisors is an integer number (9684129).

Almost surely, 2^97518869 is an apocalyptic number.

It is an amenable number.

97518869 is a deficient number, since it is larger than the sum of its proper divisors (18690679).

97518869 is a wasteful number, since it uses less digits than its factorization.

97518869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48596 (or 48589 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 53.

The square root of 97518869 is about 9875.1642517985. The cubic root of 97518869 is about 460.2878931920.

The spelling of 97518869 in words is "ninety-seven million, five hundred eighteen thousand, eight hundred sixty-nine".