87224844 has 24 divisors (see below), whose sum is σ = 232599808. Its totient is φ = 24921360.

The previous prime is 87224843. The next prime is 87224857. The reversal of 87224844 is 44842278.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (87224843) 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, 519112 + ... + 519279.

Almost surely, 2^87224844 is an apocalyptic number.

87224844 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

87224844 is an abundant number, since it is smaller than the sum of its proper divisors (145374964).

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

87224844 is a wasteful number, since it uses less digits than its factorization.

87224844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038405 (or 1038403 counting only the distinct ones).

The product of its digits is 114688, while the sum is 39.

The square root of 87224844 is about 9339.4241792522. The cubic root of 87224844 is about 443.4861558179.

The spelling of 87224844 in words is "eighty-seven million, two hundred twenty-four thousand, eight hundred forty-four".