477643872 has 24 divisors (see below), whose sum is σ = 1253815416. Its totient is φ = 159214592.

The previous prime is 477643867. The next prime is 477643879. The reversal of 477643872 is 278346774.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477643879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2487633 + ... + 2487824.

It is an arithmetic number, because the mean of its divisors is an integer number (52242309).

Almost surely, 2^477643872 is an apocalyptic number.

It is an amenable number.

477643872 is an abundant number, since it is smaller than the sum of its proper divisors (776171544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

477643872 is a wasteful number, since it uses less digits than its factorization.

477643872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975470 (or 4975462 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 48.

The square root of 477643872 is about 21855.0651337396. The cubic root of 477643872 is about 781.6903250740.

The spelling of 477643872 in words is "four hundred seventy-seven million, six hundred forty-three thousand, eight hundred seventy-two".