4912909 has 4 divisors (see below), whose sum is σ = 4986304. Its totient is φ = 4839516.

The previous prime is 4912903. The next prime is 4912937. The reversal of 4912909 is 9092194.

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.

It is a cyclic number.

It is not a de Polignac number, because 4912909 - 2⁷ = 4912781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4912903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36597 + ... + 36730.

It is an arithmetic number, because the mean of its divisors is an integer number (1246576).

Almost surely, 2^4912909 is an apocalyptic number.

It is an amenable number.

4912909 is a deficient number, since it is larger than the sum of its proper divisors (73395).

4912909 is an equidigital number, since it uses as much as digits as its factorization.

4912909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73394.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 4912909 is about 2216.5082900815. The cubic root of 4912909 is about 169.9989503972.

The spelling of 4912909 in words is "four million, nine hundred twelve thousand, nine hundred nine".