4905811 has 4 divisors (see below), whose sum is σ = 4936072. Its totient is φ = 4875552.

The previous prime is 4905799. The next prime is 4905829. The reversal of 4905811 is 1185094.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1185094 = 2 ⋅592547.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4905811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4905811.

It is not an unprimeable number, because it can be changed into a prime (4902811) 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, 14886 + ... + 15211.

It is an arithmetic number, because the mean of its divisors is an integer number (1234018).

Almost surely, 2^4905811 is an apocalyptic number.

4905811 is a deficient number, since it is larger than the sum of its proper divisors (30261).

4905811 is a wasteful number, since it uses less digits than its factorization.

4905811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30260.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 4905811 is about 2214.9065443038. The cubic root of 4905811 is about 169.9170414151.

The spelling of 4905811 in words is "four million, nine hundred five thousand, eight hundred eleven".