396471663 has 12 divisors (see below), whose sum is σ = 654493008. Its totient is φ = 226555200.

The previous prime is 396471659. The next prime is 396471667. The reversal of 396471663 is 366174693.

It is an interprime number because it is at equal distance from previous prime (396471659) and next prime (396471667).

It is not a de Polignac number, because 396471663 - 2² = 396471659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396471667) 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, 3146538 + ... + 3146663.

It is an arithmetic number, because the mean of its divisors is an integer number (54541084).

Almost surely, 2^396471663 is an apocalyptic number.

396471663 is a deficient number, since it is larger than the sum of its proper divisors (258021345).

396471663 is a wasteful number, since it uses less digits than its factorization.

396471663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6293214 (or 6293211 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 396471663 is about 19911.5961941779. The cubic root of 396471663 is about 734.6334810113.

The spelling of 396471663 in words is "three hundred ninety-six million, four hundred seventy-one thousand, six hundred sixty-three".