87037140 has 24 divisors (see below), whose sum is σ = 243704160. Its totient is φ = 23209888.

The previous prime is 87037121. The next prime is 87037141. The reversal of 87037140 is 4173078.

It is a happy number.

87037140 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

87037140 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 87037098 and 87037107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87037141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725250 + ... + 725369.

It is an arithmetic number, because the mean of its divisors is an integer number (10154340).

Almost surely, 2^87037140 is an apocalyptic number.

It is an amenable number.

87037140 is an abundant number, since it is smaller than the sum of its proper divisors (156667020).

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

87037140 is a wasteful number, since it uses less digits than its factorization.

87037140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450631 (or 1450629 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 87037140 is about 9329.3697536329. The cubic root of 87037140 is about 443.1678064974.

The spelling of 87037140 in words is "eighty-seven million, thirty-seven thousand, one hundred forty".