87974502 has 72 divisors (see below), whose sum is σ = 225064728. Its totient is φ = 22841280.

The previous prime is 87974489. The next prime is 87974519. The reversal of 87974502 is 20547978.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 34338 + ... + 36810.

It is an arithmetic number, because the mean of its divisors is an integer number (3125899).

Almost surely, 2^87974502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87974502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112532364).

87974502 is an abundant number, since it is smaller than the sum of its proper divisors (137090226).

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

87974502 is a wasteful number, since it uses less digits than its factorization.

87974502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514 (or 2496 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 87974502 is about 9379.4723732201. The cubic root of 87974502 is about 444.7530540819.

The spelling of 87974502 in words is "eighty-seven million, nine hundred seventy-four thousand, five hundred two".