87233644 has 6 divisors (see below), whose sum is σ = 152658884. Its totient is φ = 43616820.

The previous prime is 87233621. The next prime is 87233651. The reversal of 87233644 is 44633278.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10904202 + ... + 10904209.

Almost surely, 2^87233644 is an apocalyptic number.

It is an amenable number.

87233644 is a deficient number, since it is larger than the sum of its proper divisors (65425240).

87233644 is a wasteful number, since it uses less digits than its factorization.

87233644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21808415 (or 21808413 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 87233644 is about 9339.8952884923. The cubic root of 87233644 is about 443.5010695617.

The spelling of 87233644 in words is "eighty-seven million, two hundred thirty-three thousand, six hundred forty-four".