87400384 has 28 divisors (see below), whose sum is σ = 174817024. Its totient is φ = 43352064.

The previous prime is 87400363. The next prime is 87400393. The reversal of 87400384 is 48300478.

87400384 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2752 + ... + 13504.

Almost surely, 2^87400384 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 87400384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87408512).

87400384 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87400384 is a wasteful number, since it uses less digits than its factorization.

87400384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10892 (or 10882 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 87400384 is about 9348.8172513960. The cubic root of 87400384 is about 443.7834617629.

The spelling of 87400384 in words is "eighty-seven million, four hundred thousand, three hundred eighty-four".