396938859 has 4 divisors (see below), whose sum is σ = 529251816. Its totient is φ = 264625904.

The previous prime is 396938851. The next prime is 396938873. The reversal of 396938859 is 958839693.

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

It is a cyclic number.

It is not a de Polignac number, because 396938859 - 2³ = 396938851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396938851) 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 3 ways as a sum of consecutive naturals, for example, 66156474 + ... + 66156479.

It is an arithmetic number, because the mean of its divisors is an integer number (132312954).

Almost surely, 2^396938859 is an apocalyptic number.

396938859 is a deficient number, since it is larger than the sum of its proper divisors (132312957).

396938859 is a wasteful number, since it uses less digits than its factorization.

396938859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132312956.

The product of its digits is 12597120, while the sum is 60.

The square root of 396938859 is about 19923.3244966798. The cubic root of 396938859 is about 734.9219279377.

The spelling of 396938859 in words is "three hundred ninety-six million, nine hundred thirty-eight thousand, eight hundred fifty-nine".