87140448 has 60 divisors (see below), whose sum is σ = 256285260. Its totient is φ = 29045952.

The previous prime is 87140413. The next prime is 87140467. The reversal of 87140448 is 84404178.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14218 + ... + 19401.

It is an arithmetic number, because the mean of its divisors is an integer number (4271421).

Almost surely, 2^87140448 is an apocalyptic number.

It is an amenable number.

87140448 is an abundant number, since it is smaller than the sum of its proper divisors (169144812).

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

87140448 is a wasteful number, since it uses less digits than its factorization.

87140448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33641 (or 33624 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 87140448 is about 9334.9048200825. The cubic root of 87140448 is about 443.3430752691.

The spelling of 87140448 in words is "eighty-seven million, one hundred forty thousand, four hundred forty-eight".