87306902620 has 24 divisors (see below), whose sum is σ = 209536566624. Its totient is φ = 29933795136.

The previous prime is 87306902587. The next prime is 87306902623. The reversal of 87306902620 is 2620960378.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87306902623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311810227 + ... + 311810506.

It is an arithmetic number, because the mean of its divisors is an integer number (8730690276).

Almost surely, 2^87306902620 is an apocalyptic number.

It is an amenable number.

87306902620 is an abundant number, since it is smaller than the sum of its proper divisors (122229664004).

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

87306902620 is a wasteful number, since it uses less digits than its factorization.

87306902620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623620749 (or 623620747 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 87306902620 in words is "eighty-seven billion, three hundred six million, nine hundred two thousand, six hundred twenty".