4990729 has 4 divisors (see below), whose sum is σ = 4997376. Its totient is φ = 4984084.

The previous prime is 4990723. The next prime is 4990753. The reversal of 4990729 is 9270994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4990729 - 2¹¹ = 4988681 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4990691 and 4990700.

It is not an unprimeable number, because it can be changed into a prime (4990723) 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, 2029 + ... + 3754.

It is an arithmetic number, because the mean of its divisors is an integer number (1249344).

Almost surely, 2^4990729 is an apocalyptic number.

It is an amenable number.

4990729 is a deficient number, since it is larger than the sum of its proper divisors (6647).

4990729 is an equidigital number, since it uses as much as digits as its factorization.

4990729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6646.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 4990729 is about 2233.9939570196. The cubic root of 4990729 is about 170.8918413648.

The spelling of 4990729 in words is "four million, nine hundred ninety thousand, seven hundred twenty-nine".