397127 has 2 divisors, whose sum is σ = 397128. Its totient is φ = 397126.

The previous prime is 397099. The next prime is 397151. The reversal of 397127 is 721793.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (721793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 397127 - 2⁶ = 397063 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 397127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198563 + 198564.

It is an arithmetic number, because the mean of its divisors is an integer number (198564).

2³⁹⁷¹²⁷ is an apocalyptic number.

397127 is a deficient number, since it is larger than the sum of its proper divisors (1).

397127 is an equidigital number, since it uses as much as digits as its factorization.

397127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646, while the sum is 29.

The square root of 397127 is about 630.1801329779. The cubic root of 397127 is about 73.5038022313.

The spelling of 397127 in words is "three hundred ninety-seven thousand, one hundred twenty-seven".