393048697 has 2 divisors, whose sum is σ = 393048698. Its totient is φ = 393048696.

The previous prime is 393048683. The next prime is 393048703. The reversal of 393048697 is 796840393.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198697216 + 194351481 = 14096^2 + 13941^2 .

It is an emirp because it is prime and its reverse (796840393) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 393048697 - 2⁷ = 393048569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 393048697.

It is not a weakly prime, because it can be changed into another prime (393048797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196524348 + 196524349.

It is an arithmetic number, because the mean of its divisors is an integer number (196524349).

Almost surely, 2^393048697 is an apocalyptic number.

It is an amenable number.

393048697 is a deficient number, since it is larger than the sum of its proper divisors (1).

393048697 is an equidigital number, since it uses as much as digits as its factorization.

393048697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 393048697 is about 19825.4557829070. The cubic root of 393048697 is about 732.5131974310.

The spelling of 393048697 in words is "three hundred ninety-three million, forty-eight thousand, six hundred ninety-seven".