4862809 has 6 divisors (see below), whose sum is σ = 5656794. Its totient is φ = 4168080.

The previous prime is 4862797. The next prime is 4862813. The reversal of 4862809 is 9082684.

It can be written as a sum of positive squares in only one way, i.e., 4862025 + 784 = 2205^2 + 28^2 .

It is not a de Polignac number, because 4862809 - 2⁵ = 4862777 is a prime.

It is a super-2 number, since 2×4862809² = 47293822740962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4862509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49572 + ... + 49669.

It is an arithmetic number, because the mean of its divisors is an integer number (942799).

Almost surely, 2^4862809 is an apocalyptic number.

4862809 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4862809 is a deficient number, since it is larger than the sum of its proper divisors (793985).

4862809 is an equidigital number, since it uses as much as digits as its factorization.

4862809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99255 (or 99248 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 4862809 is about 2205.1777706117. The cubic root of 4862809 is about 169.4191131133.

It can be divided in two parts, 4862 and 809, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 4862809 in words is "four million, eight hundred sixty-two thousand, eight hundred nine".