4865813 has 4 divisors (see below), whose sum is σ = 4877100. Its totient is φ = 4854528.

The previous prime is 4865803. The next prime is 4865821. The reversal of 4865813 is 3185684.

4865813 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1965604 + 2900209 = 1402^2 + 1703^2 .

It is a cyclic number.

It is not a de Polignac number, because 4865813 - 2⁴ = 4865797 is a prime.

It is a super-2 number, since 2×4865813² = 47352272301938, 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 (4865803) 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, 4970 + ... + 5867.

It is an arithmetic number, because the mean of its divisors is an integer number (1219275).

Almost surely, 2^4865813 is an apocalyptic number.

It is an amenable number.

4865813 is a deficient number, since it is larger than the sum of its proper divisors (11287).

4865813 is a wasteful number, since it uses less digits than its factorization.

4865813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11286.

The product of its digits is 23040, while the sum is 35.

The square root of 4865813 is about 2205.8587896781. The cubic root of 4865813 is about 169.4539921482.

The spelling of 4865813 in words is "four million, eight hundred sixty-five thousand, eight hundred thirteen".