2491267 has 4 divisors (see below), whose sum is σ = 2498320. Its totient is φ = 2484216.

The previous prime is 2491259. The next prime is 2491289. The reversal of 2491267 is 7621942.

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 2491267 - 2³ = 2491259 is a prime.

It is a super-2 number, since 2×2491267² = 12412822530578, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2491207) 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, 2967 + ... + 3712.

It is an arithmetic number, because the mean of its divisors is an integer number (624580).

2^2491267 is an apocalyptic number.

2491267 is a deficient number, since it is larger than the sum of its proper divisors (7053).

2491267 is an equidigital number, since it uses as much as digits as its factorization.

2491267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7052.

The product of its digits is 6048, while the sum is 31.

The square root of 2491267 is about 1578.3747970618. The cubic root of 2491267 is about 135.5626630641.

The spelling of 2491267 in words is "two million, four hundred ninety-one thousand, two hundred sixty-seven".