396036217 has 4 divisors (see below), whose sum is σ = 402528676. Its totient is φ = 389543760.

The previous prime is 396036203. The next prime is 396036257. The reversal of 396036217 is 712630693.

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

It can be written as a sum of positive squares in 2 ways, for example, as 188128656 + 207907561 = 13716^2 + 14419^2 .

It is a cyclic number.

It is not a de Polignac number, because 396036217 - 2¹⁵ = 396003449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396036257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3246138 + ... + 3246259.

It is an arithmetic number, because the mean of its divisors is an integer number (100632169).

Almost surely, 2^396036217 is an apocalyptic number.

It is an amenable number.

396036217 is a deficient number, since it is larger than the sum of its proper divisors (6492459).

396036217 is an equidigital number, since it uses as much as digits as its factorization.

396036217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6492458.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 396036217 is about 19900.6587076911. The cubic root of 396036217 is about 734.3644324467.

The spelling of 396036217 in words is "three hundred ninety-six million, thirty-six thousand, two hundred seventeen".