390740107 has 2 divisors, whose sum is σ = 390740108. Its totient is φ = 390740106.

The previous prime is 390740069. The next prime is 390740131. The reversal of 390740107 is 701047093.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390740107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (390740137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195370053 + 195370054.

It is an arithmetic number, because the mean of its divisors is an integer number (195370054).

Almost surely, 2^390740107 is an apocalyptic number.

390740107 is a deficient number, since it is larger than the sum of its proper divisors (1).

390740107 is an equidigital number, since it uses as much as digits as its factorization.

390740107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 390740107 is about 19767.1471639182. The cubic root of 390740107 is about 731.0762301490.

The spelling of 390740107 in words is "three hundred ninety million, seven hundred forty thousand, one hundred seven".