396973901 has 2 divisors, whose sum is σ = 396973902. Its totient is φ = 396973900.

The previous prime is 396973883. The next prime is 396973903. The reversal of 396973901 is 109379693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298944100 + 98029801 = 17290^2 + 9901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396973901 is a prime.

Together with 396973903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396973903) 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, 198486950 + 198486951.

It is an arithmetic number, because the mean of its divisors is an integer number (198486951).

Almost surely, 2^396973901 is an apocalyptic number.

It is an amenable number.

396973901 is a deficient number, since it is larger than the sum of its proper divisors (1).

396973901 is an equidigital number, since it uses as much as digits as its factorization.

396973901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 47.

The square root of 396973901 is about 19924.2038987760. The cubic root of 396973901 is about 734.9435537505.

The spelling of 396973901 in words is "three hundred ninety-six million, nine hundred seventy-three thousand, nine hundred one".