406285647 has 8 divisors (see below), whose sum is σ = 541857456. Its totient is φ = 270785472.

The previous prime is 406285631. The next prime is 406285657. The reversal of 406285647 is 746582604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 406285647 - 2⁴ = 406285631 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 406285599 and 406285608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406285657) 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 7 ways as a sum of consecutive naturals, for example, 2868 + ... + 28649.

It is an arithmetic number, because the mean of its divisors is an integer number (67732182).

Almost surely, 2^406285647 is an apocalyptic number.

406285647 is a deficient number, since it is larger than the sum of its proper divisors (135571809).

406285647 is a wasteful number, since it uses less digits than its factorization.

406285647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35817.

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 406285647 is about 20156.5286445856. The cubic root of 406285647 is about 740.6456788472.

The spelling of 406285647 in words is "four hundred six million, two hundred eighty-five thousand, six hundred forty-seven".