396973739 has 2 divisors, whose sum is σ = 396973740. Its totient is φ = 396973738.

The previous prime is 396973729. The next prime is 396973747. The reversal of 396973739 is 937379693.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396973739 - 2⁸ = 396973483 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (396973729) 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, 198486869 + 198486870.

It is an arithmetic number, because the mean of its divisors is an integer number (198486870).

Almost surely, 2^396973739 is an apocalyptic number.

396973739 is a deficient number, since it is larger than the sum of its proper divisors (1).

396973739 is an equidigital number, since it uses as much as digits as its factorization.

396973739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5786802, while the sum is 56.

The square root of 396973739 is about 19924.1998333685. The cubic root of 396973739 is about 734.9434537768.

The spelling of 396973739 in words is "three hundred ninety-six million, nine hundred seventy-three thousand, seven hundred thirty-nine".