87237504 has 96 divisors (see below), whose sum is σ = 257297040. Its totient is φ = 28354560.

The previous prime is 87237467. The next prime is 87237509. The reversal of 87237504 is 40573278.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×87237504² = 15220764208300032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87237509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46309 + ... + 48155.

Almost surely, 2^87237504 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 87237504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128648520).

87237504 is an abundant number, since it is smaller than the sum of its proper divisors (170059536).

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

87237504 is a wasteful number, since it uses less digits than its factorization.

87237504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908 (or 1893 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 87237504 is about 9340.1019266387. The cubic root of 87237504 is about 443.5076109556.

The spelling of 87237504 in words is "eighty-seven million, two hundred thirty-seven thousand, five hundred four".