695391649 has 8 divisors (see below), whose sum is σ = 719919360. Its totient is φ = 671269536.

The previous prime is 695391629. The next prime is 695391661. The reversal of 695391649 is 946193596.

695391649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 695391649 - 2⁵ = 695391617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 695391596 and 695391605.

It is not an unprimeable number, because it can be changed into a prime (695391629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97909 + ... + 104770.

It is an arithmetic number, because the mean of its divisors is an integer number (89989920).

Almost surely, 2^695391649 is an apocalyptic number.

It is an amenable number.

695391649 is a deficient number, since it is larger than the sum of its proper divisors (24527711).

695391649 is a wasteful number, since it uses less digits than its factorization.

695391649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202799.

The product of its digits is 1574640, while the sum is 52.

The square root of 695391649 is about 26370.2796534280. The cubic root of 695391649 is about 885.9512467505.

The spelling of 695391649 in words is "six hundred ninety-five million, three hundred ninety-one thousand, six hundred forty-nine".