87105392 has 20 divisors (see below), whose sum is σ = 184109496. Its totient is φ = 39593280.

The previous prime is 87105371. The next prime is 87105397. The reversal of 87105392 is 29350178.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87105397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247283 + ... + 247634.

Almost surely, 2^87105392 is an apocalyptic number.

It is an amenable number.

87105392 is an abundant number, since it is smaller than the sum of its proper divisors (97004104).

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

87105392 is a wasteful number, since it uses less digits than its factorization.

87105392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494936 (or 494930 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 87105392 is about 9333.0269473521. The cubic root of 87105392 is about 443.2836160100.

The spelling of 87105392 in words is "eighty-seven million, one hundred five thousand, three hundred ninety-two".