87321700 has 36 divisors (see below), whose sum is σ = 189987840. Its totient is φ = 34836640.

The previous prime is 87321667. The next prime is 87321709. The reversal of 87321700 is 712378.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87321709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46989 + ... + 48811.

It is an arithmetic number, because the mean of its divisors is an integer number (5277440).

Almost surely, 2^87321700 is an apocalyptic number.

It is an amenable number.

87321700 is an abundant number, since it is smaller than the sum of its proper divisors (102666140).

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

87321700 is a wasteful number, since it uses less digits than its factorization.

87321700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316 (or 2309 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 87321700 is about 9344.6080709680. The cubic root of 87321700 is about 443.6502467040.

The spelling of 87321700 in words is "eighty-seven million, three hundred twenty-one thousand, seven hundred".