87872292 has 36 divisors (see below), whose sum is σ = 222966016. Its totient is φ = 29179440.

The previous prime is 87872249. The next prime is 87872293. The reversal of 87872292 is 29227878.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (87872293) 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 11 ways as a sum of consecutive naturals, for example, 5253 + ... + 14259.

Almost surely, 2^87872292 is an apocalyptic number.

It is an amenable number.

87872292 is an abundant number, since it is smaller than the sum of its proper divisors (135093724).

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

87872292 is a wasteful number, since it uses less digits than its factorization.

87872292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9288 (or 9283 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 87872292 is about 9374.0221890072. The cubic root of 87872292 is about 444.5807472405.

The spelling of 87872292 in words is "eighty-seven million, eight hundred seventy-two thousand, two hundred ninety-two".