987225624 has 128 divisors (see below), whose sum is σ = 3419020800. Its totient is φ = 256417920.

The previous prime is 987225623. The next prime is 987225671. The reversal of 987225624 is 426522789.

987225624 is a `hidden beast` number, since 9 + 87 + 2 + 2 + 562 + 4 = 666.

It is a super-2 number, since 2×987225624² = 1949228865364378752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 987225624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987225623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13047 + ... + 46310.

It is an arithmetic number, because the mean of its divisors is an integer number (26711100).

Almost surely, 2^987225624 is an apocalyptic number.

It is an amenable number.

987225624 is an abundant number, since it is smaller than the sum of its proper divisors (2431795176).

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

987225624 is a wasteful number, since it uses less digits than its factorization.

987225624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59390 (or 59380 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 987225624 is about 31420.1467851441. The cubic root of 987225624 is about 995.7236132512.

The spelling of 987225624 in words is "nine hundred eighty-seven million, two hundred twenty-five thousand, six hundred twenty-four".