695370861 has 6 divisors (see below), whose sum is σ = 1004424590. Its totient is φ = 463580568.

The previous prime is 695370857. The next prime is 695370881. The reversal of 695370861 is 168073596.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 615982761 + 79388100 = 24819^2 + 8910^2 .

It is not a de Polignac number, because 695370861 - 2² = 695370857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (695370821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38631706 + ... + 38631723.

Almost surely, 2^695370861 is an apocalyptic number.

It is an amenable number.

695370861 is a deficient number, since it is larger than the sum of its proper divisors (309053729).

695370861 is a wasteful number, since it uses less digits than its factorization.

695370861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77263435 (or 77263432 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 695370861 is about 26369.8854946319. The cubic root of 695370861 is about 885.9424184697.

It can be divided in two parts, 6953708 and 61, that added together give a square (6953769 = 2637²).

The spelling of 695370861 in words is "six hundred ninety-five million, three hundred seventy thousand, eight hundred sixty-one".