87440620 has 24 divisors (see below), whose sum is σ = 188589744. Its totient is φ = 34030656.

The previous prime is 87440611. The next prime is 87440651. The reversal of 87440620 is 2604478.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58342 + ... + 59821.

It is an arithmetic number, because the mean of its divisors is an integer number (7857906).

Almost surely, 2^87440620 is an apocalyptic number.

It is an amenable number.

87440620 is an abundant number, since it is smaller than the sum of its proper divisors (101149124).

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

87440620 is a wasteful number, since it uses less digits than its factorization.

87440620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118209 (or 118207 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 87440620 is about 9350.9689337523. The cubic root of 87440620 is about 443.8515519747.

The spelling of 87440620 in words is "eighty-seven million, four hundred forty thousand, six hundred twenty".