396775297 has 2 divisors, whose sum is σ = 396775298. Its totient is φ = 396775296.

The previous prime is 396775283. The next prime is 396775307. The reversal of 396775297 is 792577693.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225270081 + 171505216 = 15009^2 + 13096^2 .

It is a cyclic number.

It is not a de Polignac number, because 396775297 - 2¹⁵ = 396742529 is a prime.

It is not a weakly prime, because it can be changed into another prime (396775097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198387648 + 198387649.

It is an arithmetic number, because the mean of its divisors is an integer number (198387649).

Almost surely, 2^396775297 is an apocalyptic number.

It is an amenable number.

396775297 is a deficient number, since it is larger than the sum of its proper divisors (1).

396775297 is an equidigital number, since it uses as much as digits as its factorization.

396775297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5000940, while the sum is 55.

The square root of 396775297 is about 19919.2192869098. The cubic root of 396775297 is about 734.8209704796.

The spelling of 396775297 in words is "three hundred ninety-six million, seven hundred seventy-five thousand, two hundred ninety-seven".