87403960 has 64 divisors (see below), whose sum is σ = 225558720. Its totient is φ = 29859840.

The previous prime is 87403949. The next prime is 87403961. The reversal of 87403960 is 6930478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87403961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151192 + ... + 151768.

It is an arithmetic number, because the mean of its divisors is an integer number (3524355).

Almost surely, 2^87403960 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 87403960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112779360).

87403960 is an abundant number, since it is smaller than the sum of its proper divisors (138154760).

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

87403960 is a wasteful number, since it uses less digits than its factorization.

87403960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 87403960 is about 9349.0085035794. The cubic root of 87403960 is about 443.7895141696.

The spelling of 87403960 in words is "eighty-seven million, four hundred three thousand, nine hundred sixty".