697339679 has 2 divisors, whose sum is σ = 697339680. Its totient is φ = 697339678.

The previous prime is 697339667. The next prime is 697339681. The reversal of 697339679 is 976933796.

697339679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 697339679 - 2¹⁶ = 697274143 is a prime.

Together with 697339681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (697339619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348669839 + 348669840.

It is an arithmetic number, because the mean of its divisors is an integer number (348669840).

Almost surely, 2^697339679 is an apocalyptic number.

697339679 is a deficient number, since it is larger than the sum of its proper divisors (1).

697339679 is an equidigital number, since it uses as much as digits as its factorization.

697339679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11573604, while the sum is 59.

The square root of 697339679 is about 26407.1899110829. The cubic root of 697339679 is about 886.7777596652. Note that the first 4 decimals are identical.

The spelling of 697339679 in words is "six hundred ninety-seven million, three hundred thirty-nine thousand, six hundred seventy-nine".