396618111 has 12 divisors (see below), whose sum is σ = 586216488. Its totient is φ = 258262704.

The previous prime is 396618071. The next prime is 396618127. The reversal of 396618111 is 111816693.

It is a happy number.

396618111 is a `hidden beast` number, since 39 + 6 + 618 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 396618111 - 2¹⁰ = 396617087 is a prime.

It is a Smith number, since the sum of its digits (36) 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 (396618311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 512040 + ... + 512813.

It is an arithmetic number, because the mean of its divisors is an integer number (48851374).

Almost surely, 2^396618111 is an apocalyptic number.

396618111 is a deficient number, since it is larger than the sum of its proper divisors (189598377).

396618111 is a wasteful number, since it uses less digits than its factorization.

396618111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024902 (or 1024899 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 396618111 is about 19915.2733096988. The cubic root of 396618111 is about 734.7239224141.

The spelling of 396618111 in words is "three hundred ninety-six million, six hundred eighteen thousand, one hundred eleven".