87421794 has 16 divisors (see below), whose sum is σ = 175543200. Its totient is φ = 29024000.

The previous prime is 87421783. The next prime is 87421819. The reversal of 87421794 is 49712478.

It is a happy 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, 27519 + ... + 30530.

It is an arithmetic number, because the mean of its divisors is an integer number (10971450).

Almost surely, 2^87421794 is an apocalyptic number.

87421794 is an abundant number, since it is smaller than the sum of its proper divisors (88121406).

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

87421794 is a wasteful number, since it uses less digits than its factorization.

87421794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58305.

The product of its digits is 112896, while the sum is 42.

The square root of 87421794 is about 9349.9622459131. The cubic root of 87421794 is about 443.8196958836.

The spelling of 87421794 in words is "eighty-seven million, four hundred twenty-one thousand, seven hundred ninety-four".