87380992 has 22 divisors (see below), whose sum is σ = 174678698. Its totient is φ = 43689984.

The previous prime is 87380987. The next prime is 87380999. The reversal of 87380992 is 29908378.

It can be written as a sum of positive squares in only one way, i.e., 68161536 + 19219456 = 8256^2 + 4384^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87380999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41643 + ... + 43690.

Almost surely, 2^87380992 is an apocalyptic number.

It is an amenable number.

87380992 is a deficient number, since it is larger than the sum of its proper divisors (87297706).

87380992 is an equidigital number, since it uses as much as digits as its factorization.

87380992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85353 (or 85335 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 87380992 is about 9347.7800573184. The cubic root of 87380992 is about 443.7506377826.

The spelling of 87380992 in words is "eighty-seven million, three hundred eighty thousand, nine hundred ninety-two".