4911997 has 8 divisors (see below), whose sum is σ = 5249016. Its totient is φ = 4580352.

The previous prime is 4911961. The next prime is 4912007. The reversal of 4911997 is 7991194.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 155236 + 4756761 = 394^2 + 2181^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4911997 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 (4911097) 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, 643 + ... + 3199.

It is an arithmetic number, because the mean of its divisors is an integer number (656127).

Almost surely, 2^4911997 is an apocalyptic number.

It is an amenable number.

4911997 is a deficient number, since it is larger than the sum of its proper divisors (337019).

4911997 is a wasteful number, since it uses less digits than its factorization.

4911997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687.

The product of its digits is 20412, while the sum is 40.

The square root of 4911997 is about 2216.3025515484. The cubic root of 4911997 is about 169.9884305852.

The spelling of 4911997 in words is "four million, nine hundred eleven thousand, nine hundred ninety-seven".