695894721 has 8 divisors (see below), whose sum is σ = 928938240. Its totient is φ = 463390512.

The previous prime is 695894707. The next prime is 695894753. The reversal of 695894721 is 127498596.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 695894721 - 2⁶ = 695894657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (695894021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131806 + ... + 136983.

It is an arithmetic number, because the mean of its divisors is an integer number (116117280).

Almost surely, 2^695894721 is an apocalyptic number.

It is an amenable number.

695894721 is a deficient number, since it is larger than the sum of its proper divisors (233043519).

695894721 is a wasteful number, since it uses less digits than its factorization.

695894721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269655.

The product of its digits is 1088640, while the sum is 51.

The square root of 695894721 is about 26379.8165459883. The cubic root of 695894721 is about 886.1648385355.

The spelling of 695894721 in words is "six hundred ninety-five million, eight hundred ninety-four thousand, seven hundred twenty-one".