2491716 has 12 divisors (see below), whose sum is σ = 5814032. Its totient is φ = 830568.

The previous prime is 2491711. The next prime is 2491729. The reversal of 2491716 is 6171942.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2491711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103810 + ... + 103833.

2^2491716 is an apocalyptic number.

It is an amenable number.

2491716 is an abundant number, since it is smaller than the sum of its proper divisors (3322316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2491716 is a wasteful number, since it uses less digits than its factorization.

2491716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207650 (or 207648 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 2491716 is about 1578.5170255655. The cubic root of 2491716 is about 135.5708067087.

The spelling of 2491716 in words is "two million, four hundred ninety-one thousand, seven hundred sixteen".