87402984 has 128 divisors (see below), whose sum is σ = 244944000. Its totient is φ = 25862144.

The previous prime is 87402949. The next prime is 87403003. The reversal of 87402984 is 48920478.

It is a super-2 number, since 2×87402984² = 15278563224208512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 982012 + ... + 982100.

It is an arithmetic number, because the mean of its divisors is an integer number (1913625).

Almost surely, 2^87402984 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 87402984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122472000).

87402984 is an abundant number, since it is smaller than the sum of its proper divisors (157541016).

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

87402984 is a wasteful number, since it uses less digits than its factorization.

87402984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 87402984 is about 9348.9563053851. The cubic root of 87402984 is about 443.7878622987.

The spelling of 87402984 in words is "eighty-seven million, four hundred two thousand, nine hundred eighty-four".