4772981 has 4 divisors (see below), whose sum is σ = 4826700. Its totient is φ = 4719264.

The previous prime is 4772953. The next prime is 4772993. The reversal of 4772981 is 1892774.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2907025 + 1865956 = 1705^2 + 1366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4772981 is a prime.

It is a super-2 number, since 2×4772981² = 45562695252722, 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 (4772951) 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, 26726 + ... + 26903.

It is an arithmetic number, because the mean of its divisors is an integer number (1206675).

Almost surely, 2^4772981 is an apocalyptic number.

It is an amenable number.

4772981 is a deficient number, since it is larger than the sum of its proper divisors (53719).

4772981 is an equidigital number, since it uses as much as digits as its factorization.

4772981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53718.

The product of its digits is 28224, while the sum is 38.

The square root of 4772981 is about 2184.7153132617. The cubic root of 4772981 is about 168.3694275007.

The spelling of 4772981 in words is "four million, seven hundred seventy-two thousand, nine hundred eighty-one".