97857560 has 16 divisors (see below), whose sum is σ = 220179600. Its totient is φ = 39143008.

The previous prime is 97857523. The next prime is 97857589. The reversal of 97857560 is 6575879.

It is a happy number.

It is a super-2 number, since 2×97857560² = 19152204098307200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1223180 + ... + 1223259.

It is an arithmetic number, because the mean of its divisors is an integer number (13761225).

Almost surely, 2^97857560 is an apocalyptic number.

It is an amenable number.

97857560 is an abundant number, since it is smaller than the sum of its proper divisors (122322040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97857560 is a wasteful number, since it uses less digits than its factorization.

97857560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446450 (or 2446446 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 97857560 is about 9892.2980141118. The cubic root of 97857560 is about 460.8201499636.

The spelling of 97857560 in words is "ninety-seven million, eight hundred fifty-seven thousand, five hundred sixty".