390106907 has 2 divisors, whose sum is σ = 390106908. Its totient is φ = 390106906.

The previous prime is 390106903. The next prime is 390106943. The reversal of 390106907 is 709601093.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 390106907 - 2² = 390106903 is a prime.

It is a Chen prime.

It is equal to p_20836556 and since 390106907 and 20836556 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (390106903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195053453 + 195053454.

It is an arithmetic number, because the mean of its divisors is an integer number (195053454).

Almost surely, 2^390106907 is an apocalyptic number.

390106907 is a deficient number, since it is larger than the sum of its proper divisors (1).

390106907 is an equidigital number, since it uses as much as digits as its factorization.

390106907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 390106907 is about 19751.1241958528. The cubic root of 390106907 is about 730.6811101013.

The spelling of 390106907 in words is "three hundred ninety million, one hundred six thousand, nine hundred seven".