2491683 has 4 divisors (see below), whose sum is σ = 3322248. Its totient is φ = 1661120.

The previous prime is 2491681. The next prime is 2491711. The reversal of 2491683 is 3861942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2491683 - 2¹ = 2491681 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 4⁹ + 9 + 1 + 6⁴ + 8⁷ + 3² .

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2491681) 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, 415278 + ... + 415283.

It is an arithmetic number, because the mean of its divisors is an integer number (830562).

2^2491683 is an apocalyptic number.

2491683 is a deficient number, since it is larger than the sum of its proper divisors (830565).

2491683 is an equidigital number, since it uses as much as digits as its factorization.

2491683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830564.

The product of its digits is 10368, while the sum is 33.

The square root of 2491683 is about 1578.5065726819. The cubic root of 2491683 is about 135.5702082113.

The spelling of 2491683 in words is "two million, four hundred ninety-one thousand, six hundred eighty-three".