4919865 has 16 divisors (see below), whose sum is σ = 7900416. Its totient is φ = 2614400.

The previous prime is 4919839. The next prime is 4919867. The reversal of 4919865 is 5689194.

It is not a de Polignac number, because 4919865 - 2⁷ = 4919737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4919867) 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, 6085 + ... + 6845.

It is an arithmetic number, because the mean of its divisors is an integer number (493776).

Almost surely, 2^4919865 is an apocalyptic number.

It is an amenable number.

4919865 is a deficient number, since it is larger than the sum of its proper divisors (2980551).

4919865 is a wasteful number, since it uses less digits than its factorization.

4919865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200.

The product of its digits is 77760, while the sum is 42.

The square root of 4919865 is about 2218.0768697230. The cubic root of 4919865 is about 170.0791442325.

The spelling of 4919865 in words is "four million, nine hundred nineteen thousand, eight hundred sixty-five".