87725922 has 16 divisors (see below), whose sum is σ = 176137632. Its totient is φ = 29127680.

The previous prime is 87725921. The next prime is 87725929. The reversal of 87725922 is 22952778.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87725921) 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, 26904 + ... + 29987.

It is an arithmetic number, because the mean of its divisors is an integer number (11008602).

Almost surely, 2^87725922 is an apocalyptic number.

87725922 is an abundant number, since it is smaller than the sum of its proper divisors (88411710).

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

87725922 is a wasteful number, since it uses less digits than its factorization.

87725922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57153.

The product of its digits is 141120, while the sum is 42.

The square root of 87725922 is about 9366.2117208613. The cubic root of 87725922 is about 444.3337621098. Note that the first 3 decimals are identical.

The spelling of 87725922 in words is "eighty-seven million, seven hundred twenty-five thousand, nine hundred twenty-two".