4722191 has 4 divisors (see below), whose sum is σ = 4727112. Its totient is φ = 4717272.

The previous prime is 4722187. The next prime is 4722197. The reversal of 4722191 is 1912274.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4722191 - 2² = 4722187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4722191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4722197) 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, 500 + ... + 3113.

It is an arithmetic number, because the mean of its divisors is an integer number (1181778).

Almost surely, 2^4722191 is an apocalyptic number.

4722191 is a deficient number, since it is larger than the sum of its proper divisors (4921).

4722191 is a wasteful number, since it uses less digits than its factorization.

4722191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4920.

The product of its digits is 1008, while the sum is 26.

The square root of 4722191 is about 2173.0602844836. The cubic root of 4722191 is about 167.7700818396.

It can be divided in two parts, 4722 and 191, that added together give a cube (4913 = 17³).

The spelling of 4722191 in words is "four million, seven hundred twenty-two thousand, one hundred ninety-one".