16307939 has 2 divisors, whose sum is σ = 16307940. Its totient is φ = 16307938.

The previous prime is 16307917. The next prime is 16307957. The reversal of 16307939 is 93970361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16307939 - 2¹⁶ = 16242403 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16307969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8153969 + 8153970.

It is an arithmetic number, because the mean of its divisors is an integer number (8153970).

Almost surely, 2^16307939 is an apocalyptic number.

16307939 is a deficient number, since it is larger than the sum of its proper divisors (1).

16307939 is an equidigital number, since it uses as much as digits as its factorization.

16307939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 16307939 is about 4038.3089282520. The cubic root of 16307939 is about 253.5905269261.

The spelling of 16307939 in words is "sixteen million, three hundred seven thousand, nine hundred thirty-nine".