396967919 has 2 divisors, whose sum is σ = 396967920. Its totient is φ = 396967918.

The previous prime is 396967913. The next prime is 396967937. The reversal of 396967919 is 919769693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 396967919 - 2⁴ = 396967903 is a prime.

It is a super-2 number, since 2×396967919² = 315167057430381122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396967913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198483959 + 198483960.

It is an arithmetic number, because the mean of its divisors is an integer number (198483960).

Almost surely, 2^396967919 is an apocalyptic number.

396967919 is a deficient number, since it is larger than the sum of its proper divisors (1).

396967919 is an equidigital number, since it uses as much as digits as its factorization.

396967919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4960116, while the sum is 59.

The square root of 396967919 is about 19924.0537792890. The cubic root of 396967919 is about 734.9398621103.

The spelling of 396967919 in words is "three hundred ninety-six million, nine hundred sixty-seven thousand, nine hundred nineteen".