4805781 has 24 divisors (see below), whose sum is σ = 7132224. Its totient is φ = 2872320.

The previous prime is 4805761. The next prime is 4805791. The reversal of 4805781 is 1875084.

It is a happy number.

It is not a de Polignac number, because 4805781 - 2⁷ = 4805653 is a prime.

It is a super-2 number, since 2×4805781² = 46191062039922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4805711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19821 + ... + 20061.

It is an arithmetic number, because the mean of its divisors is an integer number (297176).

Almost surely, 2^4805781 is an apocalyptic number.

It is an amenable number.

4805781 is a deficient number, since it is larger than the sum of its proper divisors (2326443).

4805781 is a wasteful number, since it uses less digits than its factorization.

4805781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 4805781 is about 2192.2091597291. The cubic root of 4805781 is about 168.7542265059.

The spelling of 4805781 in words is "four million, eight hundred five thousand, seven hundred eighty-one".