253746797 has 2 divisors, whose sum is σ = 253746798. Its totient is φ = 253746796.

The previous prime is 253746793. The next prime is 253746799. The reversal of 253746797 is 797647352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253255396 + 491401 = 15914^2 + 701^2 .

It is a cyclic number.

It is not a de Polignac number, because 253746797 - 2² = 253746793 is a prime.

Together with 253746799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253746793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126873398 + 126873399.

It is an arithmetic number, because the mean of its divisors is an integer number (126873399).

Almost surely, 2^253746797 is an apocalyptic number.

It is an amenable number.

253746797 is a deficient number, since it is larger than the sum of its proper divisors (1).

253746797 is an equidigital number, since it uses as much as digits as its factorization.

253746797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2222640, while the sum is 50.

The square root of 253746797 is about 15929.4317852207. The cubic root of 253746797 is about 633.0920447117.

The spelling of 253746797 in words is "two hundred fifty-three million, seven hundred forty-six thousand, seven hundred ninety-seven".