4951805 has 4 divisors (see below), whose sum is σ = 5942172. Its totient is φ = 3961440.

The previous prime is 4951789. The next prime is 4951813. The reversal of 4951805 is 5081594.

4951805 = 1573² + 1574².

4951805 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 2474329 + 2477476 = 1573^2 + 1574^2 .

It is not a de Polignac number, because 4951805 - 2⁴ = 4951789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495176 + ... + 495185.

It is an arithmetic number, because the mean of its divisors is an integer number (1485543).

Almost surely, 2^4951805 is an apocalyptic number.

4951805 is the 1574-th centered square number.

It is an amenable number.

4951805 is a deficient number, since it is larger than the sum of its proper divisors (990367).

4951805 is an equidigital number, since it uses as much as digits as its factorization.

4951805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990366.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 4951805 is about 2225.2651527402. The cubic root of 4951805 is about 170.4464046105.

The spelling of 4951805 in words is "four million, nine hundred fifty-one thousand, eight hundred five".