4782981 has 16 divisors (see below), whose sum is σ = 7319168. Its totient is φ = 2721600.

The previous prime is 4782977. The next prime is 4782989. The reversal of 4782981 is 1892874.

4782981 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4782981 - 2² = 4782977 is a prime.

It is a super-2 number, since 2×4782981² = 45753814492722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4782989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8571 + ... + 9111.

It is an arithmetic number, because the mean of its divisors is an integer number (457448).

Almost surely, 2^4782981 is an apocalyptic number.

4782981 is the 1263-rd octagonal number.

It is an amenable number.

4782981 is a deficient number, since it is larger than the sum of its proper divisors (2536187).

4782981 is a wasteful number, since it uses less digits than its factorization.

4782981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972.

The product of its digits is 32256, while the sum is 39.

The square root of 4782981 is about 2187.0027434825. The cubic root of 4782981 is about 168.4869305727.

It can be divided in two parts, 47 and 82981, that added together give a triangular number (83028 = T₄₀₇).

The spelling of 4782981 in words is "four million, seven hundred eighty-two thousand, nine hundred eighty-one".