396938385 has 12 divisors (see below), whose sum is σ = 688026612. Its totient is φ = 211700448.

The previous prime is 396938369. The next prime is 396938387. The reversal of 396938385 is 583839693.

It can be written as a sum of positive squares in 2 ways, for example, as 52316289 + 344622096 = 7233^2 + 18564^2 .

It is not a de Polignac number, because 396938385 - 2⁴ = 396938369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396938387) 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, 4410382 + ... + 4410471.

It is an arithmetic number, because the mean of its divisors is an integer number (57335551).

Almost surely, 2^396938385 is an apocalyptic number.

It is an amenable number.

396938385 is a deficient number, since it is larger than the sum of its proper divisors (291088227).

396938385 is a wasteful number, since it uses less digits than its factorization.

396938385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8820864 (or 8820861 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The square root of 396938385 is about 19923.3126010711. The cubic root of 396938385 is about 734.9216354047.

The spelling of 396938385 in words is "three hundred ninety-six million, nine hundred thirty-eight thousand, three hundred eighty-five".