4628981 has 12 divisors (see below), whose sum is σ = 5702508. Its totient is φ = 3733632.

The previous prime is 4628977. The next prime is 4628999. The reversal of 4628981 is 1898264.

It can be written as a sum of positive squares in 2 ways, for example, as 4036081 + 592900 = 2009^2 + 770^2 .

It is not a de Polignac number, because 4628981 - 2² = 4628977 is a prime.

It is a super-2 number, since 2×4628981² = 42854930196722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4628581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1946 + ... + 3611.

It is an arithmetic number, because the mean of its divisors is an integer number (475209).

Almost surely, 2^4628981 is an apocalyptic number.

It is an amenable number.

4628981 is a deficient number, since it is larger than the sum of its proper divisors (1073527).

4628981 is a wasteful number, since it uses less digits than its factorization.

4628981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5588 (or 5581 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 4628981 is about 2151.5066813747. The cubic root of 4628981 is about 166.6588827476.

The spelling of 4628981 in words is "four million, six hundred twenty-eight thousand, nine hundred eighty-one".