18269707 has 2 divisors, whose sum is σ = 18269708. Its totient is φ = 18269706.

The previous prime is 18269689. The next prime is 18269729. The reversal of 18269707 is 70796281.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18269707 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18269707.

It is not a weakly prime, because it can be changed into another prime (18269767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9134853 + 9134854.

It is an arithmetic number, because the mean of its divisors is an integer number (9134854).

Almost surely, 2^18269707 is an apocalyptic number.

18269707 is a deficient number, since it is larger than the sum of its proper divisors (1).

18269707 is an equidigital number, since it uses as much as digits as its factorization.

18269707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 18269707 is about 4274.3077802142. The cubic root of 18269707 is about 263.3766043654.

The spelling of 18269707 in words is "eighteen million, two hundred sixty-nine thousand, seven hundred seven".