694125937 has 2 divisors, whose sum is σ = 694125938. Its totient is φ = 694125936.

The previous prime is 694125923. The next prime is 694125959. The reversal of 694125937 is 739521496.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 626951521 + 67174416 = 25039^2 + 8196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-694125937 is a prime.

It is a super-2 number, since 2×694125937² = 963621632832255938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (694125967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347062968 + 347062969.

It is an arithmetic number, because the mean of its divisors is an integer number (347062969).

Almost surely, 2^694125937 is an apocalyptic number.

It is an amenable number.

694125937 is a deficient number, since it is larger than the sum of its proper divisors (1).

694125937 is an equidigital number, since it uses as much as digits as its factorization.

694125937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 46.

The square root of 694125937 is about 26346.2698877849. The cubic root of 694125937 is about 885.4134010826.

The spelling of 694125937 in words is "six hundred ninety-four million, one hundred twenty-five thousand, nine hundred thirty-seven".