397650599 has 2 divisors, whose sum is σ = 397650600. Its totient is φ = 397650598.

The previous prime is 397650569. The next prime is 397650613. The reversal of 397650599 is 995056793.

It is a strong prime.

It is an emirp because it is prime and its reverse (995056793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 397650599 - 2¹⁶ = 397585063 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 397650599.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397650569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198825299 + 198825300.

It is an arithmetic number, because the mean of its divisors is an integer number (198825300).

Almost surely, 2^397650599 is an apocalyptic number.

397650599 is a deficient number, since it is larger than the sum of its proper divisors (1).

397650599 is an equidigital number, since it uses as much as digits as its factorization.

397650599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2296350, while the sum is 53.

The square root of 397650599 is about 19941.1784757070. The cubic root of 397650599 is about 735.3609216653.

The spelling of 397650599 in words is "three hundred ninety-seven million, six hundred fifty thousand, five hundred ninety-nine".