368979389 has 2 divisors, whose sum is σ = 368979390. Its totient is φ = 368979388.

The previous prime is 368979379. The next prime is 368979437. The reversal of 368979389 is 983979863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363550489 + 5428900 = 19067^2 + 2330^2 .

It is a cyclic number.

It is not a de Polignac number, because 368979389 - 2²⁴ = 352202173 is a prime.

It is a super-2 number, since 2×368979389² = 272291579013626642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (368979379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184489694 + 184489695.

It is an arithmetic number, because the mean of its divisors is an integer number (184489695).

Almost surely, 2^368979389 is an apocalyptic number.

It is an amenable number.

368979389 is a deficient number, since it is larger than the sum of its proper divisors (1).

368979389 is an equidigital number, since it uses as much as digits as its factorization.

368979389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 62.

The square root of 368979389 is about 19208.8362219058. The cubic root of 368979389 is about 717.2447352828.

The spelling of 368979389 in words is "three hundred sixty-eight million, nine hundred seventy-nine thousand, three hundred eighty-nine".