396882909 has 28 divisors (see below), whose sum is σ = 596725536. Its totient is φ = 263845512.

The previous prime is 396882907. The next prime is 396882919. The reversal of 396882909 is 909288693.

It is not a de Polignac number, because 396882909 - 2¹ = 396882907 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396882907) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 409944 + ... + 410910.

Almost surely, 2^396882909 is an apocalyptic number.

It is an amenable number.

396882909 is a deficient number, since it is larger than the sum of its proper divisors (199842627).

396882909 is an frugal number, since it uses more digits than its factorization.

396882909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548 (or 1533 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 396882909 is about 19921.9203140661. The cubic root of 396882909 is about 734.8873963274.

The spelling of 396882909 in words is "three hundred ninety-six million, eight hundred eighty-two thousand, nine hundred nine".