695979081 has 16 divisors (see below), whose sum is σ = 1178377600. Its totient is φ = 397702224.

The previous prime is 695979079. The next prime is 695979107. The reversal of 695979081 is 180979596.

It is not a de Polignac number, because 695979081 - 2¹ = 695979079 is a prime.

It is a super-2 number, since 2×695979081² = 968773762379209122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (695979001) 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, 1841026 + ... + 1841403.

It is an arithmetic number, because the mean of its divisors is an integer number (73648600).

Almost surely, 2^695979081 is an apocalyptic number.

It is an amenable number.

695979081 is a deficient number, since it is larger than the sum of its proper divisors (482398519).

695979081 is a wasteful number, since it uses less digits than its factorization.

695979081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682445 (or 3682439 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The square root of 695979081 is about 26381.4154472424. The cubic root of 695979081 is about 886.2006456018.

The spelling of 695979081 in words is "six hundred ninety-five million, nine hundred seventy-nine thousand, eighty-one".