697959 has 6 divisors (see below), whose sum is σ = 1008176. Its totient is φ = 465300.

The previous prime is 697951. The next prime is 697967. The reversal of 697959 is 959796.

It is an interprime number because it is at equal distance from previous prime (697951) and next prime (697967).

It is not a de Polignac number, because 697959 - 2³ = 697951 is a prime.

It is a Duffinian number.

697959 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38767 + ... + 38784.

2⁶⁹⁷⁹⁵⁹ is an apocalyptic number.

697959 is a deficient number, since it is larger than the sum of its proper divisors (310217).

697959 is a wasteful number, since it uses less digits than its factorization.

697959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77557 (or 77554 counting only the distinct ones).

The product of its digits is 153090, while the sum is 45.

The square root of 697959 is about 835.4394053431. The cubic root of 697959 is about 88.7040203541.

The spelling of 697959 in words is "six hundred ninety-seven thousand, nine hundred fifty-nine".