368691013 has 2 divisors, whose sum is σ = 368691014. Its totient is φ = 368691012.

The previous prime is 368690969. The next prime is 368691023. The reversal of 368691013 is 310196863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275626404 + 93064609 = 16602^2 + 9647^2 .

It is a cyclic number.

It is not a de Polignac number, because 368691013 - 2²¹ = 366593861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (368691023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184345506 + 184345507.

It is an arithmetic number, because the mean of its divisors is an integer number (184345507).

Almost surely, 2^368691013 is an apocalyptic number.

It is an amenable number.

368691013 is a deficient number, since it is larger than the sum of its proper divisors (1).

368691013 is an equidigital number, since it uses as much as digits as its factorization.

368691013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 368691013 is about 19201.3284175861. The cubic root of 368691013 is about 717.0578322726.

The spelling of 368691013 in words is "three hundred sixty-eight million, six hundred ninety-one thousand, thirteen".