396216775 has 6 divisors (see below), whose sum is σ = 491308832. Its totient is φ = 316973400.

The previous prime is 396216767. The next prime is 396216781. The reversal of 396216775 is 577612693.

It is not a de Polignac number, because 396216775 - 2³ = 396216767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7924311 + ... + 7924360.

Almost surely, 2^396216775 is an apocalyptic number.

396216775 is a deficient number, since it is larger than the sum of its proper divisors (95092057).

396216775 is a wasteful number, since it uses less digits than its factorization.

396216775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15848681 (or 15848676 counting only the distinct ones).

The product of its digits is 476280, while the sum is 46.

The square root of 396216775 is about 19905.1946737529. The cubic root of 396216775 is about 734.4760175509.

The spelling of 396216775 in words is "three hundred ninety-six million, two hundred sixteen thousand, seven hundred seventy-five".