4773981 has 8 divisors (see below), whose sum is σ = 6452800. Its totient is φ = 3138912.

The previous prime is 4773961. The next prime is 4773983. The reversal of 4773981 is 1893774.

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

It is a de Polignac number, because none of the positive numbers 2^k-4773981 is a prime.

It is a super-2 number, since 2×4773981² = 45581789176722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4773983) 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 7 ways as a sum of consecutive naturals, for example, 10681 + ... + 11118.

It is an arithmetic number, because the mean of its divisors is an integer number (806600).

Almost surely, 2^4773981 is an apocalyptic number.

It is an amenable number.

4773981 is a deficient number, since it is larger than the sum of its proper divisors (1678819).

4773981 is a wasteful number, since it uses less digits than its factorization.

4773981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21875.

The product of its digits is 42336, while the sum is 39.

The square root of 4773981 is about 2184.9441640463. The cubic root of 4773981 is about 168.3811851891.

The spelling of 4773981 in words is "four million, seven hundred seventy-three thousand, nine hundred eighty-one".