87653172 has 12 divisors (see below), whose sum is σ = 204524096. Its totient is φ = 29217720.

The previous prime is 87653131. The next prime is 87653183. The reversal of 87653172 is 27135678.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×87653172³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87653172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3652204 + ... + 3652227.

Almost surely, 2^87653172 is an apocalyptic number.

It is an amenable number.

87653172 is an abundant number, since it is smaller than the sum of its proper divisors (116870924).

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

87653172 is a wasteful number, since it uses less digits than its factorization.

87653172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7304438 (or 7304436 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 87653172 is about 9362.3272747752. The cubic root of 87653172 is about 444.2109013474.

The spelling of 87653172 in words is "eighty-seven million, six hundred fifty-three thousand, one hundred seventy-two".