87424772 has 24 divisors (see below), whose sum is σ = 156969792. Its totient is φ = 42588000.

The previous prime is 87424741. The next prime is 87424781. The reversal of 87424772 is 27742478.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30647 + ... + 33377.

It is an arithmetic number, because the mean of its divisors is an integer number (6540408).

Almost surely, 2^87424772 is an apocalyptic number.

It is an amenable number.

87424772 is a deficient number, since it is larger than the sum of its proper divisors (69545020).

87424772 is a wasteful number, since it uses less digits than its factorization.

87424772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939 (or 2937 counting only the distinct ones).

The product of its digits is 175616, while the sum is 41.

The square root of 87424772 is about 9350.1214965368. The cubic root of 87424772 is about 443.8247353594.

The spelling of 87424772 in words is "eighty-seven million, four hundred twenty-four thousand, seven hundred seventy-two".