4971805 has 8 divisors (see below), whose sum is σ = 6064344. Its totient is φ = 3912000.

The previous prime is 4971797. The next prime is 4971823. The reversal of 4971805 is 5081794.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 210681 + 4761124 = 459^2 + 2182^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4971805 - 2³ = 4971797 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 7 ways as a sum of consecutive naturals, for example, 7846 + ... + 8455.

It is an arithmetic number, because the mean of its divisors is an integer number (758043).

Almost surely, 2^4971805 is an apocalyptic number.

It is an amenable number.

4971805 is a deficient number, since it is larger than the sum of its proper divisors (1092539).

4971805 is a wasteful number, since it uses less digits than its factorization.

4971805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16367.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 4971805 is about 2229.7544707882. The cubic root of 4971805 is about 170.6755701294.

It can be divided in two parts, 4971 and 805, that added together give a square (5776 = 76²).

The spelling of 4971805 in words is "four million, nine hundred seventy-one thousand, eight hundred five".