87810616 has 8 divisors (see below), whose sum is σ = 164644920. Its totient is φ = 43905304.

The previous prime is 87810607. The next prime is 87810623. The reversal of 87810616 is 61601878.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5488156 + ... + 5488171.

It is an arithmetic number, because the mean of its divisors is an integer number (20580615).

Almost surely, 2^87810616 is an apocalyptic number.

It is an amenable number.

87810616 is a deficient number, since it is larger than the sum of its proper divisors (76834304).

87810616 is a wasteful number, since it uses less digits than its factorization.

87810616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10976333 (or 10976329 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 87810616 is about 9370.7318817689. The cubic root of 87810616 is about 444.4767084541.

The spelling of 87810616 in words is "eighty-seven million, eight hundred ten thousand, six hundred sixteen".