4731981 has 8 divisors (see below), whose sum is σ = 6325440. Its totient is φ = 3146592.

The previous prime is 4731973. The next prime is 4731983. The reversal of 4731981 is 1891374.

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

It is not a de Polignac number, because 4731981 - 2³ = 4731973 is a prime.

It is a super-2 number, since 2×4731981² = 44783288368722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4731983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480 + ... + 3113.

It is an arithmetic number, because the mean of its divisors is an integer number (790680).

Almost surely, 2^4731981 is an apocalyptic number.

It is an amenable number.

4731981 is a deficient number, since it is larger than the sum of its proper divisors (1593459).

4731981 is a wasteful number, since it uses less digits than its factorization.

4731981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035.

The product of its digits is 6048, while the sum is 33.

The square root of 4731981 is about 2175.3117018028. The cubic root of 4731981 is about 167.8859415720.

The spelling of 4731981 in words is "four million, seven hundred thirty-one thousand, nine hundred eighty-one".