695981 has 16 divisors (see below), whose sum is σ = 849408. Its totient is φ = 561600.

The previous prime is 695939. The next prime is 695999. The reversal of 695981 is 189596.

It is not a de Polignac number, because 695981 - 2⁶ = 695917 is a prime.

It is a super-2 number, since 2×695981² = 968779104722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 695981.

It is not an unprimeable number, because it can be changed into a prime (695081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4355 + ... + 4511.

It is an arithmetic number, because the mean of its divisors is an integer number (53088).

2⁶⁹⁵⁹⁸¹ is an apocalyptic number.

It is an amenable number.

695981 is a deficient number, since it is larger than the sum of its proper divisors (153427).

695981 is a wasteful number, since it uses less digits than its factorization.

695981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212.

The product of its digits is 19440, while the sum is 38.

The square root of 695981 is about 834.2547572534. The cubic root of 695981 is about 88.6201460098.

The spelling of 695981 in words is "six hundred ninety-five thousand, nine hundred eighty-one".