87281392 has 40 divisors (see below), whose sum is σ = 185010480. Its totient is φ = 39559680.

The previous prime is 87281377. The next prime is 87281393. The reversal of 87281392 is 29318278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87281393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107484 + ... + 108292.

It is an arithmetic number, because the mean of its divisors is an integer number (4625262).

Almost surely, 2^87281392 is an apocalyptic number.

It is an amenable number.

87281392 is an abundant number, since it is smaller than the sum of its proper divisors (97729088).

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

87281392 is a wasteful number, since it uses less digits than its factorization.

87281392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441 (or 1435 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 87281392 is about 9342.4510702492. The cubic root of 87281392 is about 443.5819726995.

The spelling of 87281392 in words is "eighty-seven million, two hundred eighty-one thousand, three hundred ninety-two".