338274691 has 2 divisors, whose sum is σ = 338274692. Its totient is φ = 338274690.

The previous prime is 338274661. The next prime is 338274733. The reversal of 338274691 is 196472833.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 338274691 - 2¹¹ = 338272643 is a prime.

It is a super-2 number, since 2×338274691² = 228859533142290962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (338274611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169137345 + 169137346.

It is an arithmetic number, because the mean of its divisors is an integer number (169137346).

Almost surely, 2^338274691 is an apocalyptic number.

338274691 is a deficient number, since it is larger than the sum of its proper divisors (1).

338274691 is an equidigital number, since it uses as much as digits as its factorization.

338274691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 338274691 is about 18392.2454039739. The cubic root of 338274691 is about 696.7706286504.

The spelling of 338274691 in words is "three hundred thirty-eight million, two hundred seventy-four thousand, six hundred ninety-one".