4747639 has 8 divisors (see below), whose sum is σ = 5144832. Its totient is φ = 4355040.

The previous prime is 4747609. The next prime is 4747651. The reversal of 4747639 is 9367474.

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

It is a cyclic number.

It is not a de Polignac number, because 4747639 - 2¹¹ = 4745591 is a prime.

It is a Duffinian number.

4747639 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4747609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194 + ... + 3304.

It is an arithmetic number, because the mean of its divisors is an integer number (643104).

Almost surely, 2^4747639 is an apocalyptic number.

4747639 is a deficient number, since it is larger than the sum of its proper divisors (397193).

4747639 is a wasteful number, since it uses less digits than its factorization.

4747639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297.

The product of its digits is 127008, while the sum is 40.

The square root of 4747639 is about 2178.9077538987. The cubic root of 4747639 is about 168.0709144121.

The spelling of 4747639 in words is "four million, seven hundred forty-seven thousand, six hundred thirty-nine".