87547272 has 16 divisors (see below), whose sum is σ = 218868240. Its totient is φ = 29182416.

The previous prime is 87547241. The next prime is 87547279. The reversal of 87547272 is 27274578.

It is not an unprimeable number, because it can be changed into a prime (87547279) 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, 1823878 + ... + 1823925.

It is an arithmetic number, because the mean of its divisors is an integer number (13679265).

Almost surely, 2^87547272 is an apocalyptic number.

It is an amenable number.

87547272 is an abundant number, since it is smaller than the sum of its proper divisors (131320968).

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

87547272 is a wasteful number, since it uses less digits than its factorization.

87547272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647812 (or 3647808 counting only the distinct ones).

The product of its digits is 219520, while the sum is 42.

The square root of 87547272 is about 9356.6699204364. The cubic root of 87547272 is about 444.0319350457.

The spelling of 87547272 in words is "eighty-seven million, five hundred forty-seven thousand, two hundred seventy-two".