687275092 has 24 divisors (see below), whose sum is σ = 1380314880. Its totient is φ = 293311200.

The previous prime is 687275033. The next prime is 687275093. The reversal of 687275092 is 290572786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687275093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44659 + ... + 58042.

It is an arithmetic number, because the mean of its divisors is an integer number (57513120).

Almost surely, 2^687275092 is an apocalyptic number.

It is an amenable number.

687275092 is an abundant number, since it is smaller than the sum of its proper divisors (693039788).

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

687275092 is a wasteful number, since it uses less digits than its factorization.

687275092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102951 (or 102949 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 687275092 is about 26215.9320261554. The cubic root of 687275092 is about 882.4908304761.

The spelling of 687275092 in words is "six hundred eighty-seven million, two hundred seventy-five thousand, ninety-two".