4729991 has 4 divisors (see below), whose sum is σ = 5405712. Its totient is φ = 4054272.

The previous prime is 4729981. The next prime is 4730003. The reversal of 4729991 is 1999274.

It is a happy number.

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-4729991 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 (4729981) 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, 337850 + ... + 337863.

It is an arithmetic number, because the mean of its divisors is an integer number (1351428).

Almost surely, 2^4729991 is an apocalyptic number.

4729991 is a deficient number, since it is larger than the sum of its proper divisors (675721).

4729991 is an equidigital number, since it uses as much as digits as its factorization.

4729991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675720.

The product of its digits is 40824, while the sum is 41.

The square root of 4729991 is about 2174.8542479900. The cubic root of 4729991 is about 167.8624038705.

The spelling of 4729991 in words is "four million, seven hundred twenty-nine thousand, nine hundred ninety-one".