397260673 has 2 divisors, whose sum is σ = 397260674. Its totient is φ = 397260672.

The previous prime is 397260631. The next prime is 397260697. The reversal of 397260673 is 376062793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249103089 + 148157584 = 15783^2 + 12172^2 .

It is a cyclic number.

It is not a de Polignac number, because 397260673 - 2²⁵ = 363706241 is a prime.

It is not a weakly prime, because it can be changed into another prime (397260173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198630336 + 198630337.

It is an arithmetic number, because the mean of its divisors is an integer number (198630337).

Almost surely, 2^397260673 is an apocalyptic number.

It is an amenable number.

397260673 is a deficient number, since it is larger than the sum of its proper divisors (1).

397260673 is an equidigital number, since it uses as much as digits as its factorization.

397260673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 43.

The square root of 397260673 is about 19931.3991731639. The cubic root of 397260673 is about 735.1204843595.

The spelling of 397260673 in words is "three hundred ninety-seven million, two hundred sixty thousand, six hundred seventy-three".