397362439 has 2 divisors, whose sum is σ = 397362440. Its totient is φ = 397362438.

The previous prime is 397362397. The next prime is 397362451. The reversal of 397362439 is 934263793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 397362439 - 2⁷ = 397362311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397362239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198681219 + 198681220.

It is an arithmetic number, because the mean of its divisors is an integer number (198681220).

Almost surely, 2^397362439 is an apocalyptic number.

397362439 is a deficient number, since it is larger than the sum of its proper divisors (1).

397362439 is an equidigital number, since it uses as much as digits as its factorization.

397362439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 46.

The square root of 397362439 is about 19933.9519162659. The cubic root of 397362439 is about 735.1832507740.

The spelling of 397362439 in words is "three hundred ninety-seven million, three hundred sixty-two thousand, four hundred thirty-nine".