368701721 has 2 divisors, whose sum is σ = 368701722. Its totient is φ = 368701720.

The previous prime is 368701691. The next prime is 368701741. The reversal of 368701721 is 127107863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192210496 + 176491225 = 13864^2 + 13285^2 .

It is an emirp because it is prime and its reverse (127107863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 368701721 - 2²² = 364507417 is a prime.

It is not a weakly prime, because it can be changed into another prime (368701741) 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, 184350860 + 184350861.

It is an arithmetic number, because the mean of its divisors is an integer number (184350861).

Almost surely, 2^368701721 is an apocalyptic number.

It is an amenable number.

368701721 is a deficient number, since it is larger than the sum of its proper divisors (1).

368701721 is an equidigital number, since it uses as much as digits as its factorization.

368701721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 368701721 is about 19201.6072504361. The cubic root of 368701721 is about 717.0647741116.

The spelling of 368701721 in words is "three hundred sixty-eight million, seven hundred one thousand, seven hundred twenty-one".