695679 has 4 divisors (see below), whose sum is σ = 927576. Its totient is φ = 463784.

The previous prime is 695677. The next prime is 695687. The reversal of 695679 is 976596.

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 695679 - 2¹ = 695677 is a prime.

It is a D-number.

695679 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 695679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (695677) 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, 115944 + ... + 115949.

It is an arithmetic number, because the mean of its divisors is an integer number (231894).

2⁶⁹⁵⁶⁷⁹ is an apocalyptic number.

695679 is a deficient number, since it is larger than the sum of its proper divisors (231897).

695679 is a wasteful number, since it uses less digits than its factorization.

695679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231896.

The product of its digits is 102060, while the sum is 42.

The square root of 695679 is about 834.0737377474. The cubic root of 695679 is about 88.6073261407.

The spelling of 695679 in words is "six hundred ninety-five thousand, six hundred seventy-nine".