5012809 has 4 divisors (see below), whose sum is σ = 5022160. Its totient is φ = 5003460.

The previous prime is 5012803. The next prime is 5012831. The reversal of 5012809 is 9082105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9082105 = 5 ⋅1816421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5012809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5012803) 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, 3819 + ... + 4960.

It is an arithmetic number, because the mean of its divisors is an integer number (1255540).

Almost surely, 2^5012809 is an apocalyptic number.

It is an amenable number.

5012809 is a deficient number, since it is larger than the sum of its proper divisors (9351).

5012809 is an equidigital number, since it uses as much as digits as its factorization.

5012809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9350.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 5012809 is about 2238.9303249543. The cubic root of 5012809 is about 171.1434906990.

The spelling of 5012809 in words is "five million, twelve thousand, eight hundred nine".