396564349 has 8 divisors (see below), whose sum is σ = 399583800. Its totient is φ = 393555456.

The previous prime is 396564319. The next prime is 396564353. The reversal of 396564349 is 943465693.

It can be written as a sum of positive squares in 4 ways, for example, as 208600249 + 187964100 = 14443^2 + 13710^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 396564349 - 2⁹ = 396563837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396564319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82977 + ... + 87625.

It is an arithmetic number, because the mean of its divisors is an integer number (49947975).

Almost surely, 2^396564349 is an apocalyptic number.

It is an amenable number.

396564349 is a deficient number, since it is larger than the sum of its proper divisors (3019451).

396564349 is a wasteful number, since it uses less digits than its factorization.

396564349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5279.

The product of its digits is 2099520, while the sum is 49.

The square root of 396564349 is about 19913.9234958860. The cubic root of 396564349 is about 734.6907233818.

The spelling of 396564349 in words is "three hundred ninety-six million, five hundred sixty-four thousand, three hundred forty-nine".