371327921 has 2 divisors, whose sum is σ = 371327922. Its totient is φ = 371327920.

The previous prime is 371327917. The next prime is 371327933. The reversal of 371327921 is 129723173.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304677025 + 66650896 = 17455^2 + 8164^2 .

It is a cyclic number.

It is not a de Polignac number, because 371327921 - 2² = 371327917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (371327981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185663960 + 185663961.

It is an arithmetic number, because the mean of its divisors is an integer number (185663961).

Almost surely, 2^371327921 is an apocalyptic number.

It is an amenable number.

371327921 is a deficient number, since it is larger than the sum of its proper divisors (1).

371327921 is an equidigital number, since it uses as much as digits as its factorization.

371327921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 35.

The square root of 371327921 is about 19269.8708091155. The cubic root of 371327921 is about 718.7632581701.

The spelling of 371327921 in words is "three hundred seventy-one million, three hundred twenty-seven thousand, nine hundred twenty-one".