97615560 has 128 divisors (see below), whose sum is σ = 339148800. Its totient is φ = 22014720.

The previous prime is 97615549. The next prime is 97615571. The reversal of 97615560 is 6551679.

97615560 = T₂₀₉ + T₂₁₀ + ... + T₈₄₀.

It is an interprime number because it is at equal distance from previous prime (97615549) and next prime (97615571).

It is a super-2 number, since 2×97615560² = 19057595108227200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65625 + ... + 67095.

It is an arithmetic number, because the mean of its divisors is an integer number (2649600).

Almost surely, 2^97615560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97615560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169574400).

97615560 is an abundant number, since it is smaller than the sum of its proper divisors (241533240).

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

97615560 is a wasteful number, since it uses less digits than its factorization.

97615560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571 (or 1567 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 97615560 is about 9880.0587042790. The cubic root of 97615560 is about 460.4399697284.

The spelling of 97615560 in words is "ninety-seven million, six hundred fifteen thousand, five hundred sixty".