8387506272 has 24 divisors (see below), whose sum is σ = 22017204216. Its totient is φ = 2795835392.

The previous prime is 8387506271. The next prime is 8387506313. The reversal of 8387506272 is 2726057838.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×8387506272² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8387506271) 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, 43684833 + ... + 43685024.

It is an arithmetic number, because the mean of its divisors is an integer number (917383509).

Almost surely, 2^8387506272 is an apocalyptic number.

It is an amenable number.

8387506272 is an abundant number, since it is smaller than the sum of its proper divisors (13629697944).

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

8387506272 is a wasteful number, since it uses less digits than its factorization.

8387506272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87369870 (or 87369862 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 8387506272 is about 91583.3296621170. The cubic root of 8387506272 is about 2031.7843897751.

The spelling of 8387506272 in words is "eight billion, three hundred eighty-seven million, five hundred six thousand, two hundred seventy-two".