4999919 has 4 divisors (see below), whose sum is σ = 5172360. Its totient is φ = 4827480.

The previous prime is 4999913. The next prime is 4999933. The reversal of 4999919 is 9199994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4999919 - 2¹⁶ = 4934383 is a prime.

It is a super-2 number, since 2×4999919² = 49998380013122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4999913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86177 + ... + 86234.

It is an arithmetic number, because the mean of its divisors is an integer number (1293090).

Almost surely, 2^4999919 is an apocalyptic number.

4999919 is a deficient number, since it is larger than the sum of its proper divisors (172441).

4999919 is a wasteful number, since it uses less digits than its factorization.

4999919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172440.

The product of its digits is 236196, while the sum is 50.

The square root of 4999919 is about 2236.0498652758. The cubic root of 4999919 is about 170.9966712757.

The spelling of 4999919 in words is "four million, nine hundred ninety-nine thousand, nine hundred nineteen".