2491027 has 24 divisors (see below), whose sum is σ = 3332448. Its totient is φ = 1816320.

The previous prime is 2491009. The next prime is 2491031. The reversal of 2491027 is 7201942.

It is not a de Polignac number, because 2491027 - 2⁷ = 2490899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2490992 and 2491010.

It is not an unprimeable number, because it can be changed into a prime (2491007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14313 + ... + 14485.

It is an arithmetic number, because the mean of its divisors is an integer number (138852).

2^2491027 is an apocalyptic number.

2491027 is a deficient number, since it is larger than the sum of its proper divisors (841421).

2491027 is a wasteful number, since it uses less digits than its factorization.

2491027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2491027 is about 1578.2987676609. The cubic root of 2491027 is about 135.5583097124.

Adding to 2491027 its reverse (7201942), we get a palindrome (9692969).

Subtracting 2491027 from its reverse (7201942), we obtain a triangular number (4710915 = T₃₀₆₉).

The spelling of 2491027 in words is "two million, four hundred ninety-one thousand, twenty-seven".