87235912 has 8 divisors (see below), whose sum is σ = 163567350. Its totient is φ = 43617952.

The previous prime is 87235903. The next prime is 87235921. The reversal of 87235912 is 21953278.

It is an interprime number because it is at equal distance from previous prime (87235903) and next prime (87235921).

It can be written as a sum of positive squares in only one way, i.e., 86378436 + 857476 = 9294^2 + 926^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×87235912² = 15220208684943488, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5452237 + ... + 5452252.

Almost surely, 2^87235912 is an apocalyptic number.

It is an amenable number.

87235912 is a deficient number, since it is larger than the sum of its proper divisors (76331438).

87235912 is a wasteful number, since it uses less digits than its factorization.

87235912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10904495 (or 10904491 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 87235912 is about 9340.0167023405. The cubic root of 87235912 is about 443.5049130776.

The spelling of 87235912 in words is "eighty-seven million, two hundred thirty-five thousand, nine hundred twelve".