4991709 has 8 divisors (see below), whose sum is σ = 6818112. Its totient is φ = 3246560.

The previous prime is 4991687. The next prime is 4991719. The reversal of 4991709 is 9071994.

4991709 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 4991709 - 2⁵ = 4991677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991719) 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, 20169 + ... + 20414.

It is an arithmetic number, because the mean of its divisors is an integer number (852264).

Almost surely, 2^4991709 is an apocalyptic number.

It is an amenable number.

4991709 is a deficient number, since it is larger than the sum of its proper divisors (1826403).

4991709 is a wasteful number, since it uses less digits than its factorization.

4991709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40627.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 4991709 is about 2234.2132843576. The cubic root of 4991709 is about 170.9030263068.

The spelling of 4991709 in words is "four million, nine hundred ninety-one thousand, seven hundred nine".