396765133 has 2 divisors, whose sum is σ = 396765134. Its totient is φ = 396765132.

The previous prime is 396765119. The next prime is 396765137. The reversal of 396765133 is 331567693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 392753124 + 4012009 = 19818^2 + 2003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396765133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 396765133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396765137) 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, 198382566 + 198382567.

It is an arithmetic number, because the mean of its divisors is an integer number (198382567).

Almost surely, 2^396765133 is an apocalyptic number.

It is an amenable number.

396765133 is a deficient number, since it is larger than the sum of its proper divisors (1).

396765133 is an equidigital number, since it uses as much as digits as its factorization.

396765133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 43.

The square root of 396765133 is about 19918.9641547948. The cubic root of 396765133 is about 734.8146959088.

The spelling of 396765133 in words is "three hundred ninety-six million, seven hundred sixty-five thousand, one hundred thirty-three".