4775581 has 8 divisors (see below), whose sum is σ = 4972544. Its totient is φ = 4581360.

The previous prime is 4775569. The next prime is 4775591. The reversal of 4775581 is 1855774.

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

It is a cyclic number.

It is not a de Polignac number, because 4775581 - 2⁵ = 4775549 is a prime.

It is a super-2 number, since 2×4775581² = 45612347775122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 4775581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4775591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3331 + ... + 4543.

It is an arithmetic number, because the mean of its divisors is an integer number (621568).

Almost surely, 2^4775581 is an apocalyptic number.

It is an amenable number.

4775581 is a deficient number, since it is larger than the sum of its proper divisors (196963).

4775581 is a wasteful number, since it uses less digits than its factorization.

4775581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371.

The product of its digits is 39200, while the sum is 37.

The square root of 4775581 is about 2185.3102754529. The cubic root of 4775581 is about 168.3999940759.

It can be divided in two parts, 4775 and 581, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 4775581 in words is "four million, seven hundred seventy-five thousand, five hundred eighty-one".