2634689 has 2 divisors, whose sum is σ = 2634690. Its totient is φ = 2634688.

The previous prime is 2634649. The next prime is 2634691. The reversal of 2634689 is 9864362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2265025 + 369664 = 1505^2 + 608^2 .

It is a cyclic number.

It is not a de Polignac number, because 2634689 - 2⁸ = 2634433 is a prime.

It is a super-2 number, since 2×2634689² = 13883172253442, which contains 22 as substring.

Together with 2634691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2634629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1317344 + 1317345.

It is an arithmetic number, because the mean of its divisors is an integer number (1317345).

2^2634689 is an apocalyptic number.

It is an amenable number.

2634689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2634689 is an equidigital number, since it uses as much as digits as its factorization.

2634689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 2634689 is about 1623.1725108564. The cubic root of 2634689 is about 138.1157224374.

The spelling of 2634689 in words is "two million, six hundred thirty-four thousand, six hundred eighty-nine".