396817193 has 16 divisors (see below), whose sum is σ = 418936320. Its totient is φ = 375408576.

The previous prime is 396817189. The next prime is 396817199. The reversal of 396817193 is 391718693.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 396817193 - 2² = 396817189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396817199) 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 15 ways as a sum of consecutive naturals, for example, 300188 + ... + 301506.

It is an arithmetic number, because the mean of its divisors is an integer number (26183520).

Almost surely, 2^396817193 is an apocalyptic number.

It is an amenable number.

396817193 is a deficient number, since it is larger than the sum of its proper divisors (22119127).

396817193 is a wasteful number, since it uses less digits than its factorization.

396817193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576.

The product of its digits is 244944, while the sum is 47.

The square root of 396817193 is about 19920.2709067924. The cubic root of 396817193 is about 734.8468331245.

The spelling of 396817193 in words is "three hundred ninety-six million, eight hundred seventeen thousand, one hundred ninety-three".