2238898517 has 2 divisors, whose sum is σ = 2238898518. Its totient is φ = 2238898516.

The previous prime is 2238898483. The next prime is 2238898549. The reversal of 2238898517 is 7158988322.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1264584721 + 974313796 = 35561^2 + 31214^2 .

It is a cyclic number.

It is not a de Polignac number, because 2238898517 - 2²⁰ = 2237849941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2238898577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119449258 + 1119449259.

It is an arithmetic number, because the mean of its divisors is an integer number (1119449259).

Almost surely, 2^2238898517 is an apocalyptic number.

It is an amenable number.

2238898517 is a deficient number, since it is larger than the sum of its proper divisors (1).

2238898517 is an equidigital number, since it uses as much as digits as its factorization.

2238898517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 53.

The square root of 2238898517 is about 47317.0002958767. Note that the first 3 decimals coincide. The cubic root of 2238898517 is about 1308.2120232022.

The spelling of 2238898517 in words is "two billion, two hundred thirty-eight million, eight hundred ninety-eight thousand, five hundred seventeen".