397303469 has 2 divisors, whose sum is σ = 397303470. Its totient is φ = 397303468.

The previous prime is 397303457. The next prime is 397303523. The reversal of 397303469 is 964303793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326524900 + 70778569 = 18070^2 + 8413^2 .

It is a cyclic number.

It is not a de Polignac number, because 397303469 - 2⁴ = 397303453 is a prime.

It is a super-2 number, since 2×397303469² = 315700092958867922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397303429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198651734 + 198651735.

It is an arithmetic number, because the mean of its divisors is an integer number (198651735).

Almost surely, 2^397303469 is an apocalyptic number.

It is an amenable number.

397303469 is a deficient number, since it is larger than the sum of its proper divisors (1).

397303469 is an equidigital number, since it uses as much as digits as its factorization.

397303469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 44.

The square root of 397303469 is about 19932.4727266840. The cubic root of 397303469 is about 735.1468810379.

The spelling of 397303469 in words is "three hundred ninety-seven million, three hundred three thousand, four hundred sixty-nine".