107864909 has 2 divisors, whose sum is σ = 107864910. Its totient is φ = 107864908.

The previous prime is 107864899. The next prime is 107864923. The reversal of 107864909 is 909468701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81956809 + 25908100 = 9053^2 + 5090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-107864909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 107864909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107864989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53932454 + 53932455.

It is an arithmetic number, because the mean of its divisors is an integer number (53932455).

Almost surely, 2^107864909 is an apocalyptic number.

It is an amenable number.

107864909 is a deficient number, since it is larger than the sum of its proper divisors (1).

107864909 is an equidigital number, since it uses as much as digits as its factorization.

107864909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 107864909 is about 10385.8032428888. The cubic root of 107864909 is about 476.0216738595.

The spelling of 107864909 in words is "one hundred seven million, eight hundred sixty-four thousand, nine hundred nine".