2491627 has 4 divisors (see below), whose sum is σ = 2500776. Its totient is φ = 2482480.

The previous prime is 2491609. The next prime is 2491649. The reversal of 2491627 is 7261942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7261942 = 2 ⋅3630971.

It is a cyclic number.

It is not a de Polignac number, because 2491627 - 2⁷ = 2491499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2491607) 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, 4153 + ... + 4714.

It is an arithmetic number, because the mean of its divisors is an integer number (625194).

2^2491627 is an apocalyptic number.

2491627 is a deficient number, since it is larger than the sum of its proper divisors (9149).

2491627 is an equidigital number, since it uses as much as digits as its factorization.

2491627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9148.

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

The square root of 2491627 is about 1578.4888342969. The cubic root of 2491627 is about 135.5691925674.

The spelling of 2491627 in words is "two million, four hundred ninety-one thousand, six hundred twenty-seven".