477647 has 4 divisors (see below), whose sum is σ = 481536. Its totient is φ = 473760.

The previous prime is 477637. The next prime is 477671. The reversal of 477647 is 746774.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 477647 - 2¹⁸ = 215503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477637) 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, 1754 + ... + 2007.

It is an arithmetic number, because the mean of its divisors is an integer number (120384).

2⁴⁷⁷⁶⁴⁷ is an apocalyptic number.

477647 is a deficient number, since it is larger than the sum of its proper divisors (3889).

477647 is a wasteful number, since it uses less digits than its factorization.

477647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888.

The product of its digits is 32928, while the sum is 35.

The square root of 477647 is about 691.1201053363. The cubic root of 477647 is about 78.1692031451.

The spelling of 477647 in words is "four hundred seventy-seven thousand, six hundred forty-seven".