87023894 has 16 divisors (see below), whose sum is σ = 134416800. Its totient is φ = 42229440.

The previous prime is 87023891. The next prime is 87023939. The reversal of 87023894 is 49832078.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87023891) 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, 13652 + ... + 18984.

It is an arithmetic number, because the mean of its divisors is an integer number (8401050).

Almost surely, 2^87023894 is an apocalyptic number.

87023894 is a deficient number, since it is larger than the sum of its proper divisors (47392906).

87023894 is a wasteful number, since it uses less digits than its factorization.

87023894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5575.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 87023894 is about 9328.6598180017. The cubic root of 87023894 is about 443.1453237635.

The spelling of 87023894 in words is "eighty-seven million, twenty-three thousand, eight hundred ninety-four".