371681473 has 2 divisors, whose sum is σ = 371681474. Its totient is φ = 371681472.

The previous prime is 371681447. The next prime is 371681501. The reversal of 371681473 is 374186173.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302342544 + 69338929 = 17388^2 + 8327^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-371681473 is a prime.

It is not a weakly prime, because it can be changed into another prime (371681273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185840736 + 185840737.

It is an arithmetic number, because the mean of its divisors is an integer number (185840737).

Almost surely, 2^371681473 is an apocalyptic number.

It is an amenable number.

371681473 is a deficient number, since it is larger than the sum of its proper divisors (1).

371681473 is an equidigital number, since it uses as much as digits as its factorization.

371681473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 371681473 is about 19279.0423258003. The cubic root of 371681473 is about 718.9913042034.

The spelling of 371681473 in words is "three hundred seventy-one million, six hundred eighty-one thousand, four hundred seventy-three".