87900937 has 4 divisors (see below), whose sum is σ = 90276676. Its totient is φ = 85525200.

The previous prime is 87900929. The next prime is 87900941. The reversal of 87900937 is 73900978.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63536841 + 24364096 = 7971^2 + 4936^2 .

It is a cyclic number.

It is not a de Polignac number, because 87900937 - 2³ = 87900929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87900893 and 87900902.

It is not an unprimeable number, because it can be changed into a prime (87900947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187814 + ... + 1187887.

It is an arithmetic number, because the mean of its divisors is an integer number (22569169).

Almost surely, 2^87900937 is an apocalyptic number.

It is an amenable number.

87900937 is a deficient number, since it is larger than the sum of its proper divisors (2375739).

87900937 is a wasteful number, since it uses less digits than its factorization.

87900937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375738.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 87900937 is about 9375.5499572025. The cubic root of 87900937 is about 444.6290507943.

The spelling of 87900937 in words is "eighty-seven million, nine hundred thousand, nine hundred thirty-seven".