696626731 has 4 divisors (see below), whose sum is σ = 737604792. Its totient is φ = 655648672.

The previous prime is 696626687. The next prime is 696626759. The reversal of 696626731 is 137626696.

696626731 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 696626731 - 2⁹ = 696626219 is a prime.

It is a super-2 number, since 2×696626731² = 970577604687492722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (696627731) 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, 20489005 + ... + 20489038.

It is an arithmetic number, because the mean of its divisors is an integer number (184401198).

Almost surely, 2^696626731 is an apocalyptic number.

696626731 is a deficient number, since it is larger than the sum of its proper divisors (40978061).

696626731 is a wasteful number, since it uses less digits than its factorization.

696626731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40978060.

The product of its digits is 489888, while the sum is 46.

The square root of 696626731 is about 26393.6873323907. The cubic root of 696626731 is about 886.4754478791.

The spelling of 696626731 in words is "six hundred ninety-six million, six hundred twenty-six thousand, seven hundred thirty-one".