87392940 has 48 divisors (see below), whose sum is σ = 245403648. Its totient is φ = 23237824.

The previous prime is 87392933. The next prime is 87392993. The reversal of 87392940 is 4929378.

It is a junction number, because it is equal to n+sod(n) for n = 87392892 and 87392901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21079 + ... + 24881.

It is an arithmetic number, because the mean of its divisors is an integer number (5112576).

Almost surely, 2^87392940 is an apocalyptic number.

It is an amenable number.

87392940 is an abundant number, since it is smaller than the sum of its proper divisors (158010708).

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

87392940 is a wasteful number, since it uses less digits than its factorization.

87392940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4198 (or 4196 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 87392940 is about 9348.4191176904. The cubic root of 87392940 is about 443.7708622077.

The spelling of 87392940 in words is "eighty-seven million, three hundred ninety-two thousand, nine hundred forty".