368773021 has 2 divisors, whose sum is σ = 368773022. Its totient is φ = 368773020.

The previous prime is 368772997. The next prime is 368773037. The reversal of 368773021 is 120377863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349316100 + 19456921 = 18690^2 + 4411^2 .

It is a cyclic number.

It is not a de Polignac number, because 368773021 - 2⁷ = 368772893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (368773081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184386510 + 184386511.

It is an arithmetic number, because the mean of its divisors is an integer number (184386511).

Almost surely, 2^368773021 is an apocalyptic number.

It is an amenable number.

368773021 is a deficient number, since it is larger than the sum of its proper divisors (1).

368773021 is an equidigital number, since it uses as much as digits as its factorization.

368773021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 368773021 is about 19203.4637761004. The cubic root of 368773021 is about 717.1109934268.

The spelling of 368773021 in words is "three hundred sixty-eight million, seven hundred seventy-three thousand, twenty-one".