2257829797 has 2 divisors, whose sum is σ = 2257829798. Its totient is φ = 2257829796.

The previous prime is 2257829737. The next prime is 2257829803. The reversal of 2257829797 is 7979287522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1578393441 + 679436356 = 39729^2 + 26066^2 .

It is a cyclic number.

It is not a de Polignac number, because 2257829797 - 2³¹ = 110346149 is a prime.

It is a super-2 number, since 2×2257829797² = 10195590784442122418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2257829737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128914898 + 1128914899.

It is an arithmetic number, because the mean of its divisors is an integer number (1128914899).

Almost surely, 2^2257829797 is an apocalyptic number.

It is an amenable number.

2257829797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2257829797 is an equidigital number, since it uses as much as digits as its factorization.

2257829797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8890560, while the sum is 58.

The square root of 2257829797 is about 47516.6265321940. The cubic root of 2257829797 is about 1311.8889279623. Note that the first 3 decimals are identical.

The spelling of 2257829797 in words is "two billion, two hundred fifty-seven million, eight hundred twenty-nine thousand, seven hundred ninety-seven".