686954424 has 64 divisors (see below), whose sum is σ = 1946851200. Its totient is φ = 200244096.

The previous prime is 686954413. The next prime is 686954431. The reversal of 686954424 is 424459686.

686954424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52014 + ... + 63869.

It is an arithmetic number, because the mean of its divisors is an integer number (30419550).

Almost surely, 2^686954424 is an apocalyptic number.

It is an amenable number.

686954424 is an abundant number, since it is smaller than the sum of its proper divisors (1259896776).

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

686954424 is a wasteful number, since it uses less digits than its factorization.

686954424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115924 (or 115920 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 48.

The square root of 686954424 is about 26209.8154133142. The cubic root of 686954424 is about 882.3535586150.

It can be divided in two parts, 686954 and 424, that added together give a triangular number (687378 = T₁₁₇₂).

The spelling of 686954424 in words is "six hundred eighty-six million, nine hundred fifty-four thousand, four hundred twenty-four".