625838693 has 2 divisors, whose sum is σ = 625838694. Its totient is φ = 625838692.

The previous prime is 625838687. The next prime is 625838737. The reversal of 625838693 is 396838526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 524272609 + 101566084 = 22897^2 + 10078^2 .

It is a cyclic number.

It is not a de Polignac number, because 625838693 - 2²⁸ = 357403237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625838393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312919346 + 312919347.

It is an arithmetic number, because the mean of its divisors is an integer number (312919347).

Almost surely, 2^625838693 is an apocalyptic number.

It is an amenable number.

625838693 is a deficient number, since it is larger than the sum of its proper divisors (1).

625838693 is an equidigital number, since it uses as much as digits as its factorization.

625838693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 50.

The square root of 625838693 is about 25016.7682365249. The cubic root of 625838693 is about 855.3702410283.

The spelling of 625838693 in words is "six hundred twenty-five million, eight hundred thirty-eight thousand, six hundred ninety-three".