696686407 has 4 divisors (see below), whose sum is σ = 696783600. Its totient is φ = 696589216.

The previous prime is 696686383. The next prime is 696686411. The reversal of 696686407 is 704686696.

696686407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 696686407 - 2⁷ = 696686279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (696681407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36907 + ... + 52492.

It is an arithmetic number, because the mean of its divisors is an integer number (174195900).

Almost surely, 2^696686407 is an apocalyptic number.

696686407 is a deficient number, since it is larger than the sum of its proper divisors (97193).

696686407 is an equidigital number, since it uses as much as digits as its factorization.

696686407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97192.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The square root of 696686407 is about 26394.8178057739. The cubic root of 696686407 is about 886.5007602383.

The spelling of 696686407 in words is "six hundred ninety-six million, six hundred eighty-six thousand, four hundred seven".