695368621 has 2 divisors, whose sum is σ = 695368622. Its totient is φ = 695368620.

The previous prime is 695368613. The next prime is 695368673. The reversal of 695368621 is 126863596.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 687016521 + 8352100 = 26211^2 + 2890^2 .

It is a cyclic number.

It is not a de Polignac number, because 695368621 - 2³ = 695368613 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (695368021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347684310 + 347684311.

It is an arithmetic number, because the mean of its divisors is an integer number (347684311).

Almost surely, 2^695368621 is an apocalyptic number.

It is an amenable number.

695368621 is a deficient number, since it is larger than the sum of its proper divisors (1).

695368621 is an equidigital number, since it uses as much as digits as its factorization.

695368621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The square root of 695368621 is about 26369.8430219067. The cubic root of 695368621 is about 885.9414671725.

The spelling of 695368621 in words is "six hundred ninety-five million, three hundred sixty-eight thousand, six hundred twenty-one".