87423744 has 72 divisors (see below), whose sum is σ = 236286400. Its totient is φ = 28689408.

The previous prime is 87423703. The next prime is 87423757. The reversal of 87423744 is 44732478.

It is a super-2 number, since 2×87423744² = 15285822029955072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50607 + ... + 52305.

Almost surely, 2^87423744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87423744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118143200).

87423744 is an abundant number, since it is smaller than the sum of its proper divisors (148862656).

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

87423744 is a wasteful number, since it uses less digits than its factorization.

87423744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785 (or 1771 counting only the distinct ones).

The product of its digits is 150528, while the sum is 39.

The square root of 87423744 is about 9350.0665238275. The cubic root of 87423744 is about 443.8229957547.

The spelling of 87423744 in words is "eighty-seven million, four hundred twenty-three thousand, seven hundred forty-four".