396611899 has 4 divisors (see below), whose sum is σ = 396702880. Its totient is φ = 396520920.

The previous prime is 396611881. The next prime is 396611933. The reversal of 396611899 is 998116693.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 396611899 - 2⁵ = 396611867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396611099) 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 in 3 ways as a sum of consecutive naturals, for example, 38604 + ... + 47785.

It is an arithmetic number, because the mean of its divisors is an integer number (99175720).

Almost surely, 2^396611899 is an apocalyptic number.

396611899 is a deficient number, since it is larger than the sum of its proper divisors (90981).

396611899 is an equidigital number, since it uses as much as digits as its factorization.

396611899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90980.

The product of its digits is 629856, while the sum is 52.

The square root of 396611899 is about 19915.1173483864. The cubic root of 396611899 is about 734.7200865422.

The spelling of 396611899 in words is "three hundred ninety-six million, six hundred eleven thousand, eight hundred ninety-nine".