4991884 has 12 divisors (see below), whose sum is σ = 8751904. Its totient is φ = 2491344.

The previous prime is 4991881. The next prime is 4991893. The reversal of 4991884 is 4881994.

It is an Ulam number.

Its product of digits (82944) is a multiple of the sum of its prime factors (2304).

It is a self number, because there is not a number n which added to its sum of digits gives 4991884.

It is not an unprimeable number, because it can be changed into a prime (4991881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2797 + ... + 4219.

Almost surely, 2^4991884 is an apocalyptic number.

It is an amenable number.

4991884 is a deficient number, since it is larger than the sum of its proper divisors (3760020).

4991884 is a wasteful number, since it uses less digits than its factorization.

4991884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304 (or 2302 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The square root of 4991884 is about 2234.2524476880. The cubic root of 4991884 is about 170.9050234638.

The spelling of 4991884 in words is "four million, nine hundred ninety-one thousand, eight hundred eighty-four".