4878981 has 16 divisors (see below), whose sum is σ = 7286400. Its totient is φ = 3226464.

The previous prime is 4878977. The next prime is 4879009. The reversal of 4878981 is 1898784.

It is not a de Polignac number, because 4878981 - 2² = 4878977 is a prime.

It is a super-2 number, since 2×4878981² = 47608911196722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4878941) 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, 3040 + ... + 4358.

It is an arithmetic number, because the mean of its divisors is an integer number (455400).

Almost surely, 2^4878981 is an apocalyptic number.

It is an amenable number.

4878981 is a deficient number, since it is larger than the sum of its proper divisors (2407419).

4878981 is a wasteful number, since it uses less digits than its factorization.

4878981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465 (or 1459 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 4878981 is about 2208.8415515831. The cubic root of 4878981 is about 169.6067148500.

Adding to 4878981 its product of digits (129024), we get a palindrome (5008005).

The spelling of 4878981 in words is "four million, eight hundred seventy-eight thousand, nine hundred eighty-one".