87933980 has 24 divisors (see below), whose sum is σ = 190619520. Its totient is φ = 34038720.

The previous prime is 87933977. The next prime is 87933983. The reversal of 87933980 is 8933978.

It is an interprime number because it is at equal distance from previous prime (87933977) and next prime (87933983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87933983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70295 + ... + 71534.

It is an arithmetic number, because the mean of its divisors is an integer number (7942480).

Almost surely, 2^87933980 is an apocalyptic number.

It is an amenable number.

87933980 is an abundant number, since it is smaller than the sum of its proper divisors (102685540).

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

87933980 is a wasteful number, since it uses less digits than its factorization.

87933980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141869 (or 141867 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 87933980 is about 9377.3119815862. The cubic root of 87933980 is about 444.6847575845.

The spelling of 87933980 in words is "eighty-seven million, nine hundred thirty-three thousand, nine hundred eighty".