16307399 has 2 divisors, whose sum is σ = 16307400. Its totient is φ = 16307398.

The previous prime is 16307393. The next prime is 16307407. The reversal of 16307399 is 99370361.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16307399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16307393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8153699 + 8153700.

It is an arithmetic number, because the mean of its divisors is an integer number (8153700).

Almost surely, 2^16307399 is an apocalyptic number.

16307399 is a deficient number, since it is larger than the sum of its proper divisors (1).

16307399 is an equidigital number, since it uses as much as digits as its factorization.

16307399 is an evil number, because the sum of its binary digits is even.

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

The square root of 16307399 is about 4038.2420680291. The cubic root of 16307399 is about 253.5877278723.

The spelling of 16307399 in words is "sixteen million, three hundred seven thousand, three hundred ninety-nine".