397073 has 2 divisors, whose sum is σ = 397074. Its totient is φ = 397072.

The previous prime is 397063. The next prime is 397093. The reversal of 397073 is 370793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 380689 + 16384 = 617^2 + 128^2 .

It is an emirp because it is prime and its reverse (370793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 397073 - 2⁴ = 397057 is a prime.

It is not a weakly prime, because it can be changed into another prime (397013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198536 + 198537.

It is an arithmetic number, because the mean of its divisors is an integer number (198537).

2³⁹⁷⁰⁷³ is an apocalyptic number.

It is an amenable number.

397073 is a deficient number, since it is larger than the sum of its proper divisors (1).

397073 is an equidigital number, since it uses as much as digits as its factorization.

397073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3969, while the sum is 29.

The square root of 397073 is about 630.1372866289. The cubic root of 397073 is about 73.5004704800.

The spelling of 397073 in words is "three hundred ninety-seven thousand, seventy-three".