4747391 has 4 divisors (see below), whose sum is σ = 5178984. Its totient is φ = 4315800.

The previous prime is 4747381. The next prime is 4747427. The reversal of 4747391 is 1937474.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4747391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4747331) 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, 215780 + ... + 215801.

It is an arithmetic number, because the mean of its divisors is an integer number (1294746).

Almost surely, 2^4747391 is an apocalyptic number.

4747391 is a deficient number, since it is larger than the sum of its proper divisors (431593).

4747391 is a wasteful number, since it uses less digits than its factorization.

4747391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431592.

The product of its digits is 21168, while the sum is 35.

The square root of 4747391 is about 2178.8508439083. The cubic root of 4747391 is about 168.0679878829.

The spelling of 4747391 in words is "four million, seven hundred forty-seven thousand, three hundred ninety-one".