397469 has 2 divisors, whose sum is σ = 397470. Its totient is φ = 397468.

The previous prime is 397459. The next prime is 397489. The reversal of 397469 is 964793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344569 + 52900 = 587^2 + 230^2 .

It is an emirp because it is prime and its reverse (964793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 397469 - 2¹² = 393373 is a prime.

It is a super-2 number, since 2×397469² = 315963211922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198734 + 198735.

It is an arithmetic number, because the mean of its divisors is an integer number (198735).

2³⁹⁷⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

397469 is a deficient number, since it is larger than the sum of its proper divisors (1).

397469 is an equidigital number, since it uses as much as digits as its factorization.

397469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 38.

The square root of 397469 is about 630.4514255674. The cubic root of 397469 is about 73.5248963125.

The spelling of 397469 in words is "three hundred ninety-seven thousand, four hundred sixty-nine".