87723860 has 24 divisors (see below), whose sum is σ = 210537600. Its totient is φ = 30076704.

The previous prime is 87723833. The next prime is 87723901. The reversal of 87723860 is 6832778.

It is a super-2 number, since 2×87723860² = 15390951226599200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313160 + ... + 313439.

It is an arithmetic number, because the mean of its divisors is an integer number (8772400).

Almost surely, 2^87723860 is an apocalyptic number.

It is an amenable number.

87723860 is an abundant number, since it is smaller than the sum of its proper divisors (122813740).

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

87723860 is a wasteful number, since it uses less digits than its factorization.

87723860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626615 (or 626613 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 87723860 is about 9366.1016436936. The cubic root of 87723860 is about 444.3302807238.

The spelling of 87723860 in words is "eighty-seven million, seven hundred twenty-three thousand, eight hundred sixty".