374198681 has 2 divisors, whose sum is σ = 374198682. Its totient is φ = 374198680.

The previous prime is 374198659. The next prime is 374198701. The reversal of 374198681 is 186891473.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302203456 + 71995225 = 17384^2 + 8485^2 .

It is a cyclic number.

It is not a de Polignac number, because 374198681 - 2¹⁴ = 374182297 is a prime.

It is a super-2 number, since 2×374198681² = 280049305724279522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (374198641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187099340 + 187099341.

It is an arithmetic number, because the mean of its divisors is an integer number (187099341).

Almost surely, 2^374198681 is an apocalyptic number.

It is an amenable number.

374198681 is a deficient number, since it is larger than the sum of its proper divisors (1).

374198681 is an equidigital number, since it uses as much as digits as its factorization.

374198681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 47.

The square root of 374198681 is about 19344.2156987560. The cubic root of 374198681 is about 720.6107735317.

The spelling of 374198681 in words is "three hundred seventy-four million, one hundred ninety-eight thousand, six hundred eighty-one".