396479985 has 16 divisors (see below), whose sum is σ = 692038080. Its totient is φ = 192232640.

The previous prime is 396479983. The next prime is 396480013. The reversal of 396479985 is 589974693.

It is not a de Polignac number, because 396479985 - 2¹ = 396479983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396479983) 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, 1201290 + ... + 1201619.

It is an arithmetic number, because the mean of its divisors is an integer number (43252380).

Almost surely, 2^396479985 is an apocalyptic number.

It is an amenable number.

396479985 is a deficient number, since it is larger than the sum of its proper divisors (295558095).

396479985 is a wasteful number, since it uses less digits than its factorization.

396479985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402928.

The product of its digits is 14696640, while the sum is 60.

The square root of 396479985 is about 19911.8051667849. The cubic root of 396479985 is about 734.6386209979.

The spelling of 396479985 in words is "three hundred ninety-six million, four hundred seventy-nine thousand, nine hundred eighty-five".