477644 has 12 divisors (see below), whose sum is σ = 855624. Its totient is φ = 233184.

The previous prime is 477637. The next prime is 477671. The reversal of 477644 is 446774.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 477644.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217 + ... + 1560.

It is an arithmetic number, because the mean of its divisors is an integer number (71302).

2⁴⁷⁷⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

477644 is a deficient number, since it is larger than the sum of its proper divisors (377980).

477644 is a wasteful number, since it uses less digits than its factorization.

477644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824 (or 2822 counting only the distinct ones).

The product of its digits is 18816, while the sum is 32.

The square root of 477644 is about 691.1179349431. The cubic root of 477644 is about 78.1690394900.

The spelling of 477644 in words is "four hundred seventy-seven thousand, six hundred forty-four".