397333793 has 2 divisors, whose sum is σ = 397333794. Its totient is φ = 397333792.

The previous prime is 397333751. The next prime is 397333799.

397333793 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 364351744 + 32982049 = 19088^2 + 5743^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 397333793 - 2¹⁴ = 397317409 is a prime.

It is not a weakly prime, because it can be changed into another prime (397333799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198666896 + 198666897.

It is an arithmetic number, because the mean of its divisors is an integer number (198666897).

Almost surely, 2^397333793 is an apocalyptic number.

It is an amenable number.

397333793 is a deficient number, since it is larger than the sum of its proper divisors (1).

397333793 is an equidigital number, since it uses as much as digits as its factorization.

397333793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 964467, while the sum is 47.

The square root of 397333793 is about 19933.2333804629. The cubic root of 397333793 is about 735.1655838085.

The spelling of 397333793 in words is "three hundred ninety-seven million, three hundred thirty-three thousand, seven hundred ninety-three".