396425287 has 2 divisors, whose sum is σ = 396425288. Its totient is φ = 396425286.

The previous prime is 396425233. The next prime is 396425321. The reversal of 396425287 is 782524693.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396425287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396425207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198212643 + 198212644.

It is an arithmetic number, because the mean of its divisors is an integer number (198212644).

Almost surely, 2^396425287 is an apocalyptic number.

396425287 is a deficient number, since it is larger than the sum of its proper divisors (1).

396425287 is an equidigital number, since it uses as much as digits as its factorization.

396425287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 46.

The square root of 396425287 is about 19910.4316125995. The cubic root of 396425287 is about 734.6048360967.

The spelling of 396425287 in words is "three hundred ninety-six million, four hundred twenty-five thousand, two hundred eighty-seven".