4722729 has 8 divisors (see below), whose sum is σ = 6869472. Its totient is φ = 2862240.

The previous prime is 4722721. The next prime is 4722761. The reversal of 4722729 is 9272274.

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

It is not a de Polignac number, because 4722729 - 2³ = 4722721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 143113 = 4722729 / (4 + 7 + 2 + 2 + 7 + 2 + 9).

It is a self number, because there is not a number n which added to its sum of digits gives 4722729.

It is not an unprimeable number, because it can be changed into a prime (4722721) 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, 71524 + ... + 71589.

It is an arithmetic number, because the mean of its divisors is an integer number (858684).

Almost surely, 2^4722729 is an apocalyptic number.

It is an amenable number.

4722729 is a deficient number, since it is larger than the sum of its proper divisors (2146743).

4722729 is a wasteful number, since it uses less digits than its factorization.

4722729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143127.

The product of its digits is 14112, while the sum is 33.

The square root of 4722729 is about 2173.1840695164. The cubic root of 4722729 is about 167.7764529554.

The spelling of 4722729 in words is "four million, seven hundred twenty-two thousand, seven hundred twenty-nine".