397343497 has 4 divisors (see below), whose sum is σ = 398103760. Its totient is φ = 396583236.

The previous prime is 397343467. The next prime is 397343501. The reversal of 397343497 is 794343793.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397343497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397343497.

It is not an unprimeable number, because it can be changed into a prime (397343417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379347 + ... + 380392.

It is an arithmetic number, because the mean of its divisors is an integer number (99525940).

Almost surely, 2^397343497 is an apocalyptic number.

It is an amenable number.

397343497 is a deficient number, since it is larger than the sum of its proper divisors (760263).

397343497 is an equidigital number, since it uses as much as digits as its factorization.

397343497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760262.

The product of its digits is 1714608, while the sum is 49.

The square root of 397343497 is about 19933.4767915685. The cubic root of 397343497 is about 735.1715686914.

The spelling of 397343497 in words is "three hundred ninety-seven million, three hundred forty-three thousand, four hundred ninety-seven".