4947917305 has 4 divisors (see below), whose sum is σ = 5937500772. Its totient is φ = 3958333840.

The previous prime is 4947917279. The next prime is 4947917309. The reversal of 4947917305 is 5037197494.

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 3579509241 + 1368408064 = 59829^2 + 36992^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4947917305 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4947917309) 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, 494791726 + ... + 494791735.

It is an arithmetic number, because the mean of its divisors is an integer number (1484375193).

Almost surely, 2^4947917305 is an apocalyptic number.

It is an amenable number.

4947917305 is a deficient number, since it is larger than the sum of its proper divisors (989583467).

4947917305 is an equidigital number, since it uses as much as digits as its factorization.

4947917305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989583466.

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 4947917305 is about 70341.4337712845. The cubic root of 4947917305 is about 1704.0178673039.

The spelling of 4947917305 in words is "four billion, nine hundred forty-seven million, nine hundred seventeen thousand, three hundred five".