2634491 has 4 divisors (see below), whose sum is σ = 2690592. Its totient is φ = 2578392.

The previous prime is 2634487. The next prime is 2634493. The reversal of 2634491 is 1944362.

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 2634491 - 2² = 2634487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2634493) 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, 27980 + ... + 28073.

It is an arithmetic number, because the mean of its divisors is an integer number (672648).

2^2634491 is an apocalyptic number.

2634491 is a deficient number, since it is larger than the sum of its proper divisors (56101).

2634491 is an equidigital number, since it uses as much as digits as its factorization.

2634491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56100.

The product of its digits is 5184, while the sum is 29.

The square root of 2634491 is about 1623.1115180418. Note that the first 3 decimals coincide. The cubic root of 2634491 is about 138.1122624973.

It can be divided in two parts, 2634 and 491, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2634491 in words is "two million, six hundred thirty-four thousand, four hundred ninety-one".