396993833 has 2 divisors, whose sum is σ = 396993834. Its totient is φ = 396993832.

The previous prime is 396993829. The next prime is 396993851. The reversal of 396993833 is 338399693.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332223529 + 64770304 = 18227^2 + 8048^2 .

It is a cyclic number.

It is not a de Polignac number, because 396993833 - 2² = 396993829 is a prime.

It is not a weakly prime, because it can be changed into another prime (396993893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198496916 + 198496917.

It is an arithmetic number, because the mean of its divisors is an integer number (198496917).

Almost surely, 2^396993833 is an apocalyptic number.

It is an amenable number.

396993833 is a deficient number, since it is larger than the sum of its proper divisors (1).

396993833 is an equidigital number, since it uses as much as digits as its factorization.

396993833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2834352, while the sum is 53.

The square root of 396993833 is about 19924.7040881414. The cubic root of 396993833 is about 734.9558540132.

The spelling of 396993833 in words is "three hundred ninety-six million, nine hundred ninety-three thousand, eight hundred thirty-three".