396775471 has 4 divisors (see below), whose sum is σ = 396981000. Its totient is φ = 396569944.

The previous prime is 396775459. The next prime is 396775487. The reversal of 396775471 is 174577693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174577693 = 47 ⋅3714419.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396775471 is a prime.

It is a super-3 number, since 3×396775471³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396770471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99841 + ... + 103738.

It is an arithmetic number, because the mean of its divisors is an integer number (99245250).

Almost surely, 2^396775471 is an apocalyptic number.

396775471 is a deficient number, since it is larger than the sum of its proper divisors (205529).

396775471 is a wasteful number, since it uses less digits than its factorization.

396775471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205528.

The product of its digits is 1111320, while the sum is 49.

The square root of 396775471 is about 19919.2236545504. The cubic root of 396775471 is about 734.8210778946.

The spelling of 396775471 in words is "three hundred ninety-six million, seven hundred seventy-five thousand, four hundred seventy-one".