397714727 has 2 divisors, whose sum is σ = 397714728. Its totient is φ = 397714726.

The previous prime is 397714721. The next prime is 397714763. The reversal of 397714727 is 727417793.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 397714727 - 2⁶ = 397714663 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397714721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198857363 + 198857364.

It is an arithmetic number, because the mean of its divisors is an integer number (198857364).

Almost surely, 2^397714727 is an apocalyptic number.

397714727 is a deficient number, since it is larger than the sum of its proper divisors (1).

397714727 is an equidigital number, since it uses as much as digits as its factorization.

397714727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518616, while the sum is 47.

The square root of 397714727 is about 19942.7863399275. The cubic root of 397714727 is about 735.4004494069.

The spelling of 397714727 in words is "three hundred ninety-seven million, seven hundred fourteen thousand, seven hundred twenty-seven".