87313922 has 8 divisors (see below), whose sum is σ = 131155200. Its totient is φ = 43595524.

The previous prime is 87313907. The next prime is 87313937. The reversal of 87313922 is 22931378.

It is an interprime number because it is at equal distance from previous prime (87313907) and next prime (87313937).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28922 + ... + 31797.

It is an arithmetic number, because the mean of its divisors is an integer number (16394400).

Almost surely, 2^87313922 is an apocalyptic number.

87313922 is a deficient number, since it is larger than the sum of its proper divisors (43841278).

87313922 is a wasteful number, since it uses less digits than its factorization.

87313922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61440.

The product of its digits is 18144, while the sum is 35.

The square root of 87313922 is about 9344.1918858722. The cubic root of 87313922 is about 443.6370739032.

The spelling of 87313922 in words is "eighty-seven million, three hundred thirteen thousand, nine hundred twenty-two".