390197099 has 2 divisors, whose sum is σ = 390197100. Its totient is φ = 390197098.

The previous prime is 390197029. The next prime is 390197113. The reversal of 390197099 is 990791093.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 390197099 - 2²⁴ = 373419883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (390197009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195098549 + 195098550.

It is an arithmetic number, because the mean of its divisors is an integer number (195098550).

Almost surely, 2^390197099 is an apocalyptic number.

390197099 is a deficient number, since it is larger than the sum of its proper divisors (1).

390197099 is an equidigital number, since it uses as much as digits as its factorization.

390197099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 137781, while the sum is 47.

The square root of 390197099 is about 19753.4072757082. The cubic root of 390197099 is about 730.7374164722.

The spelling of 390197099 in words is "three hundred ninety million, one hundred ninety-seven thousand, ninety-nine".