97115578 has 8 divisors (see below), whose sum is σ = 166483872. Its totient is φ = 41620956.

The previous prime is 97115539. The next prime is 97115581. The reversal of 97115578 is 87551179.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3468400 + ... + 3468427.

It is an arithmetic number, because the mean of its divisors is an integer number (20810484).

Almost surely, 2^97115578 is an apocalyptic number.

97115578 is a deficient number, since it is larger than the sum of its proper divisors (69368294).

97115578 is a wasteful number, since it uses less digits than its factorization.

97115578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6936836.

The product of its digits is 88200, while the sum is 43.

The square root of 97115578 is about 9854.7236389459. The cubic root of 97115578 is about 459.6525069392.

The spelling of 97115578 in words is "ninety-seven million, one hundred fifteen thousand, five hundred seventy-eight".