687233874 has 64 divisors (see below), whose sum is σ = 1486895616. Its totient is φ = 210971904.

The previous prime is 687233873. The next prime is 687233879. The reversal of 687233874 is 478332786.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (687233873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1551097 + ... + 1551539.

It is an arithmetic number, because the mean of its divisors is an integer number (23232744).

Almost surely, 2^687233874 is an apocalyptic number.

687233874 is an abundant number, since it is smaller than the sum of its proper divisors (799661742).

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

687233874 is a wasteful number, since it uses less digits than its factorization.

687233874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759.

The product of its digits is 1354752, while the sum is 48.

The square root of 687233874 is about 26215.1458893518. The cubic root of 687233874 is about 882.4731882274.

The spelling of 687233874 in words is "six hundred eighty-seven million, two hundred thirty-three thousand, eight hundred seventy-four".