245737693 has 2 divisors, whose sum is σ = 245737694. Its totient is φ = 245737692.

The previous prime is 245737643. The next prime is 245737699. The reversal of 245737693 is 396737542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204289849 + 41447844 = 14293^2 + 6438^2 .

It is a cyclic number.

It is not a de Polignac number, because 245737693 - 2²⁵ = 212183261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245737699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122868846 + 122868847.

It is an arithmetic number, because the mean of its divisors is an integer number (122868847).

Almost surely, 2^245737693 is an apocalyptic number.

It is an amenable number.

245737693 is a deficient number, since it is larger than the sum of its proper divisors (1).

245737693 is an equidigital number, since it uses as much as digits as its factorization.

245737693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 46.

The square root of 245737693 is about 15676.0228693377. The cubic root of 245737693 is about 626.3598704180.

The spelling of 245737693 in words is "two hundred forty-five million, seven hundred thirty-seven thousand, six hundred ninety-three".