18339707 has 2 divisors, whose sum is σ = 18339708. Its totient is φ = 18339706.

The previous prime is 18339697. The next prime is 18339791. The reversal of 18339707 is 70793381.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18339707 - 2⁴ = 18339691 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18339407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9169853 + 9169854.

It is an arithmetic number, because the mean of its divisors is an integer number (9169854).

Almost surely, 2^18339707 is an apocalyptic number.

18339707 is a deficient number, since it is larger than the sum of its proper divisors (1).

18339707 is an equidigital number, since it uses as much as digits as its factorization.

18339707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 18339707 is about 4282.4884121268. The cubic root of 18339707 is about 263.7125496567.

The spelling of 18339707 in words is "eighteen million, three hundred thirty-nine thousand, seven hundred seven".