390970597 has 2 divisors, whose sum is σ = 390970598. Its totient is φ = 390970596.

The previous prime is 390970571. The next prime is 390970603. The reversal of 390970597 is 795079093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218862436 + 172108161 = 14794^2 + 13119^2 .

It is a cyclic number.

It is not a de Polignac number, because 390970597 - 2⁷ = 390970469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 390970597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (390970297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195485298 + 195485299.

It is an arithmetic number, because the mean of its divisors is an integer number (195485299).

Almost surely, 2^390970597 is an apocalyptic number.

It is an amenable number.

390970597 is a deficient number, since it is larger than the sum of its proper divisors (1).

390970597 is an equidigital number, since it uses as much as digits as its factorization.

390970597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 535815, while the sum is 49.

The square root of 390970597 is about 19772.9764324949. The cubic root of 390970597 is about 731.2199511163.

The spelling of 390970597 in words is "three hundred ninety million, nine hundred seventy thousand, five hundred ninety-seven".