396971 has 2 divisors, whose sum is σ = 396972. Its totient is φ = 396970.

The previous prime is 396953. The next prime is 396983. The reversal of 396971 is 179693.

It is a strong prime.

It is an emirp because it is prime and its reverse (179693) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (396931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198485 + 198486.

It is an arithmetic number, because the mean of its divisors is an integer number (198486).

2³⁹⁶⁹⁷¹ is an apocalyptic number.

396971 is a deficient number, since it is larger than the sum of its proper divisors (1).

396971 is an equidigital number, since it uses as much as digits as its factorization.

396971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206, while the sum is 35.

The square root of 396971 is about 630.0563466865. The cubic root of 396971 is about 73.4941763476.

The spelling of 396971 in words is "three hundred ninety-six thousand, nine hundred seventy-one".