87922 has 4 divisors (see below), whose sum is σ = 131886. Its totient is φ = 43960.

The previous prime is 87917. The next prime is 87931. The reversal of 87922 is 22978.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22978 = 2 ⋅11489.

It can be written as a sum of positive squares in only one way, i.e., 62001 + 25921 = 249^2 + 161^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21979 + ... + 21982.

2⁸⁷⁹²² is an apocalyptic number.

87922 is a deficient number, since it is larger than the sum of its proper divisors (43964).

87922 is a wasteful number, since it uses less digits than its factorization.

87922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43963.

The product of its digits is 2016, while the sum is 28.

The square root of 87922 is about 296.5164413654. The cubic root of 87922 is about 44.4664562262.

The spelling of 87922 in words is "eighty-seven thousand, nine hundred twenty-two".