687422754 has 16 divisors (see below), whose sum is σ = 1527606240. Its totient is φ = 229140900.

The previous prime is 687422753. The next prime is 687422759. The reversal of 687422754 is 457224786.

It is a happy number.

687422754 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (687422753) 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, 6364972 + ... + 6365079.

It is an arithmetic number, because the mean of its divisors is an integer number (95475390).

Almost surely, 2^687422754 is an apocalyptic number.

687422754 is an abundant number, since it is smaller than the sum of its proper divisors (840183486).

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

687422754 is a wasteful number, since it uses less digits than its factorization.

687422754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12730062 (or 12730056 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 687422754 is about 26218.7481394517. The cubic root of 687422754 is about 882.5540274071.

The spelling of 687422754 in words is "six hundred eighty-seven million, four hundred twenty-two thousand, seven hundred fifty-four".