4993881 has 4 divisors (see below), whose sum is σ = 6658512. Its totient is φ = 3329252.

The previous prime is 4993873. The next prime is 4993897. The reversal of 4993881 is 1883994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4993881 - 2³ = 4993873 is a prime.

It is a super-2 number, since 2×4993881² = 49877694884322, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4993811) 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 3 ways as a sum of consecutive naturals, for example, 832311 + ... + 832316.

It is an arithmetic number, because the mean of its divisors is an integer number (1664628).

Almost surely, 2^4993881 is an apocalyptic number.

It is an amenable number.

4993881 is a deficient number, since it is larger than the sum of its proper divisors (1664631).

4993881 is a wasteful number, since it uses less digits than its factorization.

4993881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664630.

The product of its digits is 62208, while the sum is 42.

The square root of 4993881 is about 2234.6993086319. The cubic root of 4993881 is about 170.9278105739.

The spelling of 4993881 in words is "four million, nine hundred ninety-three thousand, eight hundred eighty-one".