97712555 has 16 divisors (see below), whose sum is σ = 122031360. Its totient is φ = 75048288.

The previous prime is 97712539. The next prime is 97712557. The reversal of 97712555 is 55521779.

It is a cyclic number.

It is not a de Polignac number, because 97712555 - 2⁴ = 97712539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97712557) 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, 8834 + ... + 16536.

It is an arithmetic number, because the mean of its divisors is an integer number (7626960).

Almost surely, 2^97712555 is an apocalyptic number.

97712555 is a deficient number, since it is larger than the sum of its proper divisors (24318805).

97712555 is a wasteful number, since it uses less digits than its factorization.

97712555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7810.

The product of its digits is 110250, while the sum is 41.

The square root of 97712555 is about 9884.9661102100. The cubic root of 97712555 is about 460.5924235342.

The spelling of 97712555 in words is "ninety-seven million, seven hundred twelve thousand, five hundred fifty-five".