2911997 has 8 divisors (see below), whose sum is σ = 3344160. Its totient is φ = 2507760.

The previous prime is 2911973. The next prime is 2912009. The reversal of 2911997 is 7991192.

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 2911997 - 2⁶ = 2911933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2911997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2911927) 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, 6758 + ... + 7175.

It is an arithmetic number, because the mean of its divisors is an integer number (418020).

2^2911997 is an apocalyptic number.

It is an amenable number.

2911997 is a deficient number, since it is larger than the sum of its proper divisors (432163).

2911997 is a wasteful number, since it uses less digits than its factorization.

2911997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13963.

The product of its digits is 10206, while the sum is 38.

The square root of 2911997 is about 1706.4574416023. The cubic root of 2911997 is about 142.8006905997.

The spelling of 2911997 in words is "two million, nine hundred eleven thousand, nine hundred ninety-seven".