4865991 has 8 divisors (see below), whose sum is σ = 6987120. Its totient is φ = 2994432.

The previous prime is 4865989. The next prime is 4865999. The reversal of 4865991 is 1995684.

4865991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4865991 - 2¹ = 4865989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4865999) 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, 62346 + ... + 62423.

It is an arithmetic number, because the mean of its divisors is an integer number (873390).

Almost surely, 2^4865991 is an apocalyptic number.

4865991 is a deficient number, since it is larger than the sum of its proper divisors (2121129).

4865991 is a wasteful number, since it uses less digits than its factorization.

4865991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124785.

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

The square root of 4865991 is about 2205.8991364067. The cubic root of 4865991 is about 169.4560584313.

The spelling of 4865991 in words is "four million, eight hundred sixty-five thousand, nine hundred ninety-one".