97866879 has 16 divisors (see below), whose sum is σ = 143766144. Its totient is φ = 58724000.

The previous prime is 97866871. The next prime is 97866893.

97866879 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 97866879 - 2³ = 97866871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97866871) 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 15 ways as a sum of consecutive naturals, for example, 11349 + ... + 18014.

It is an arithmetic number, because the mean of its divisors is an integer number (8985384).

Almost surely, 2^97866879 is an apocalyptic number.

97866879 is a deficient number, since it is larger than the sum of its proper divisors (45899265).

97866879 is a wasteful number, since it uses less digits than its factorization.

97866879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29478.

The product of its digits is 9144576, while the sum is 60.

The square root of 97866879 is about 9892.7690259098. The cubic root of 97866879 is about 460.8347775055.

The spelling of 97866879 in words is "ninety-seven million, eight hundred sixty-six thousand, eight hundred seventy-nine".