97555579 has 4 divisors (see below), whose sum is σ = 106424280. Its totient is φ = 88686880.

The previous prime is 97555567. The next prime is 97555583.

97555579 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97555579 - 2⁹ = 97555067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97555559) 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, 4434334 + ... + 4434355.

It is an arithmetic number, because the mean of its divisors is an integer number (26606070).

Almost surely, 2^97555579 is an apocalyptic number.

97555579 is a deficient number, since it is larger than the sum of its proper divisors (8868701).

97555579 is a wasteful number, since it uses less digits than its factorization.

97555579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8868700.

The product of its digits is 2480625, while the sum is 52.

The square root of 97555579 is about 9877.0227801701. The cubic root of 97555579 is about 460.3456428663.

The spelling of 97555579 in words is "ninety-seven million, five hundred fifty-five thousand, five hundred seventy-nine".