339640937 has 2 divisors, whose sum is σ = 339640938. Its totient is φ = 339640936.

The previous prime is 339640933. The next prime is 339640963. The reversal of 339640937 is 739046933.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325585936 + 14055001 = 18044^2 + 3749^2 .

It is a cyclic number.

It is not a de Polignac number, because 339640937 - 2² = 339640933 is a prime.

It is not a weakly prime, because it can be changed into another prime (339640933) 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, 169820468 + 169820469.

It is an arithmetic number, because the mean of its divisors is an integer number (169820469).

Almost surely, 2^339640937 is an apocalyptic number.

It is an amenable number.

339640937 is a deficient number, since it is larger than the sum of its proper divisors (1).

339640937 is an equidigital number, since it uses as much as digits as its factorization.

339640937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 44.

The square root of 339640937 is about 18429.3498800148. The cubic root of 339640937 is about 697.7074228836.

The spelling of 339640937 in words is "three hundred thirty-nine million, six hundred forty thousand, nine hundred thirty-seven".