18252797 has 2 divisors, whose sum is σ = 18252798. Its totient is φ = 18252796.

The previous prime is 18252763. The next prime is 18252811. The reversal of 18252797 is 79725281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17926756 + 326041 = 4234^2 + 571^2 .

It is a cyclic number.

It is not a de Polignac number, because 18252797 - 2⁸ = 18252541 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18252727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9126398 + 9126399.

It is an arithmetic number, because the mean of its divisors is an integer number (9126399).

Almost surely, 2^18252797 is an apocalyptic number.

It is an amenable number.

18252797 is a deficient number, since it is larger than the sum of its proper divisors (1).

18252797 is an equidigital number, since it uses as much as digits as its factorization.

18252797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 41.

The square root of 18252797 is about 4272.3292242055. The cubic root of 18252797 is about 263.2953209388.

The spelling of 18252797 in words is "eighteen million, two hundred fifty-two thousand, seven hundred ninety-seven".