4979881 has 8 divisors (see below), whose sum is σ = 5264000. Its totient is φ = 4698000.

The previous prime is 4979879. The next prime is 4979893. The reversal of 4979881 is 1889794.

It is a happy number.

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

It is a 3-Lehmer number, since φ(4979881) divides (4979881-1)³.

It is a cyclic number.

It is not a de Polignac number, because 4979881 - 2¹ = 4979879 is a prime.

It is a super-2 number, since 2×4979881² = 49598429548322, which contains 22 as substring.

It is a Duffinian number.

4979881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4979801) 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, 6256 + ... + 7006.

It is an arithmetic number, because the mean of its divisors is an integer number (658000).

Almost surely, 2^4979881 is an apocalyptic number.

It is an amenable number.

4979881 is a deficient number, since it is larger than the sum of its proper divisors (284119).

4979881 is a wasteful number, since it uses less digits than its factorization.

4979881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119.

The product of its digits is 145152, while the sum is 46.

The square root of 4979881 is about 2231.5646976953. The cubic root of 4979881 is about 170.7679329803.

The spelling of 4979881 in words is "four million, nine hundred seventy-nine thousand, eight hundred eighty-one".