87736920 has 32 divisors (see below), whose sum is σ = 263211120. Its totient is φ = 23396480.

The previous prime is 87736907. The next prime is 87736931. The reversal of 87736920 is 2963778.

It is a congruent number.

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, 365451 + ... + 365690.

Almost surely, 2^87736920 is an apocalyptic number.

It is an amenable number.

87736920 is an abundant number, since it is smaller than the sum of its proper divisors (175474200).

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

87736920 is a wasteful number, since it uses less digits than its factorization.

87736920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731155 (or 731151 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 87736920 is about 9366.7988128282. The cubic root of 87736920 is about 444.3523297061.

The spelling of 87736920 in words is "eighty-seven million, seven hundred thirty-six thousand, nine hundred twenty".