397313303 has 2 divisors, whose sum is σ = 397313304. Its totient is φ = 397313302.

The previous prime is 397313263. The next prime is 397313309. The reversal of 397313303 is 303313793.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397313303 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 397313303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397313309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198656651 + 198656652.

It is an arithmetic number, because the mean of its divisors is an integer number (198656652).

Almost surely, 2^397313303 is an apocalyptic number.

397313303 is a deficient number, since it is larger than the sum of its proper divisors (1).

397313303 is an equidigital number, since it uses as much as digits as its factorization.

397313303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15309, while the sum is 32.

The square root of 397313303 is about 19932.7194080487. The cubic root of 397313303 is about 735.1529464055.

It can be divided in two parts, 39731 and 3303, that added together give a palindrome (43034).

The spelling of 397313303 in words is "three hundred ninety-seven million, three hundred thirteen thousand, three hundred three".