697179479 has 2 divisors, whose sum is σ = 697179480. Its totient is φ = 697179478.

The previous prime is 697179463. The next prime is 697179523. The reversal of 697179479 is 974971796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 697179479 - 2⁴ = 697179463 is a prime.

It is a super-2 number, since 2×697179479² = 972118451877422882, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (697179079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348589739 + 348589740.

It is an arithmetic number, because the mean of its divisors is an integer number (348589740).

Almost surely, 2^697179479 is an apocalyptic number.

697179479 is a deficient number, since it is larger than the sum of its proper divisors (1).

697179479 is an equidigital number, since it uses as much as digits as its factorization.

697179479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6001128, while the sum is 59.

The square root of 697179479 is about 26404.1564720405. The cubic root of 697179479 is about 886.7098479137.

The spelling of 697179479 in words is "six hundred ninety-seven million, one hundred seventy-nine thousand, four hundred seventy-nine".