696979397 has 4 divisors (see below), whose sum is σ = 715816716. Its totient is φ = 678142080.

The previous prime is 696979369. The next prime is 696979421. The reversal of 696979397 is 793979696.

696979397 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 can be written as a sum of positive squares in 2 ways, for example, as 675948001 + 21031396 = 25999^2 + 4586^2 .

It is a cyclic number.

It is not a de Polignac number, because 696979397 - 2⁶ = 696979333 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 (696979357) 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, 9418604 + ... + 9418677.

It is an arithmetic number, because the mean of its divisors is an integer number (178954179).

Almost surely, 2^696979397 is an apocalyptic number.

It is an amenable number.

696979397 is a deficient number, since it is larger than the sum of its proper divisors (18837319).

696979397 is a wasteful number, since it uses less digits than its factorization.

696979397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18837318.

The product of its digits is 34720812, while the sum is 65.

The square root of 696979397 is about 26400.3673648682. The cubic root of 696979397 is about 886.6250148304.

The spelling of 696979397 in words is "six hundred ninety-six million, nine hundred seventy-nine thousand, three hundred ninety-seven".