687252272 has 40 divisors (see below), whose sum is σ = 1550498976. Its totient is φ = 288976896.

The previous prime is 687252253. The next prime is 687252277. The reversal of 687252272 is 272252786.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (687252277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51953 + ... + 63824.

Almost surely, 2^687252272 is an apocalyptic number.

It is an amenable number.

687252272 is an abundant number, since it is smaller than the sum of its proper divisors (863246704).

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

687252272 is a wasteful number, since it uses less digits than its factorization.

687252272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115845 (or 115839 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 687252272 is about 26215.4967910204. The cubic root of 687252272 is about 882.4810630802.

The spelling of 687252272 in words is "six hundred eighty-seven million, two hundred fifty-two thousand, two hundred seventy-two".