396967937 has 2 divisors, whose sum is σ = 396967938. Its totient is φ = 396967936.

The previous prime is 396967919. The next prime is 396967939. The reversal of 396967937 is 739769693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350400961 + 46566976 = 18719^2 + 6824^2 .

It is a cyclic number.

It is not a de Polignac number, because 396967937 - 2¹² = 396963841 is a prime.

Together with 396967939, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (396967939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198483968 + 198483969.

It is an arithmetic number, because the mean of its divisors is an integer number (198483969).

Almost surely, 2^396967937 is an apocalyptic number.

It is an amenable number.

396967937 is a deficient number, since it is larger than the sum of its proper divisors (1).

396967937 is an equidigital number, since it uses as much as digits as its factorization.

396967937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11573604, while the sum is 59.

The square root of 396967937 is about 19924.0542310043. The cubic root of 396967937 is about 734.9398732186.

The spelling of 396967937 in words is "three hundred ninety-six million, nine hundred sixty-seven thousand, nine hundred thirty-seven".