396973747 has 2 divisors, whose sum is σ = 396973748. Its totient is φ = 396973746.

The previous prime is 396973739. The next prime is 396973793. The reversal of 396973747 is 747379693.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 396973747 - 2³ = 396973739 is a prime.

It is not a weakly prime, because it can be changed into another prime (396953747) 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, 198486873 + 198486874.

It is an arithmetic number, because the mean of its divisors is an integer number (198486874).

Almost surely, 2^396973747 is an apocalyptic number.

396973747 is a deficient number, since it is larger than the sum of its proper divisors (1).

396973747 is an equidigital number, since it uses as much as digits as its factorization.

396973747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6001128, while the sum is 55.

The square root of 396973747 is about 19924.2000341294. The cubic root of 396973747 is about 734.9434587138.

The spelling of 396973747 in words is "three hundred ninety-six million, nine hundred seventy-three thousand, seven hundred forty-seven".