397073143 has 2 divisors, whose sum is σ = 397073144. Its totient is φ = 397073142.

The previous prime is 397073123. The next prime is 397073161. The reversal of 397073143 is 341370793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 397073143 - 2⁹ = 397072631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397073113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198536571 + 198536572.

It is an arithmetic number, because the mean of its divisors is an integer number (198536572).

Almost surely, 2^397073143 is an apocalyptic number.

397073143 is a deficient number, since it is larger than the sum of its proper divisors (1).

397073143 is an equidigital number, since it uses as much as digits as its factorization.

397073143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 397073143 is about 19926.6942316080. The cubic root of 397073143 is about 735.0047930334.

The spelling of 397073143 in words is "three hundred ninety-seven million, seventy-three thousand, one hundred forty-three".