397493 has 2 divisors, whose sum is σ = 397494. Its totient is φ = 397492.

The previous prime is 397489. The next prime is 397517. The reversal of 397493 is 394793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386884 + 10609 = 622^2 + 103^2 .

It is a cyclic number.

It is not a de Polignac number, because 397493 - 2² = 397489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198746 + 198747.

It is an arithmetic number, because the mean of its divisors is an integer number (198747).

2³⁹⁷⁴⁹³ is an apocalyptic number.

It is an amenable number.

397493 is a deficient number, since it is larger than the sum of its proper divisors (1).

397493 is an equidigital number, since it uses as much as digits as its factorization.

397493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 35.

The square root of 397493 is about 630.4704592604. The cubic root of 397493 is about 73.5263761445.

The spelling of 397493 in words is "three hundred ninety-seven thousand, four hundred ninety-three".