2634605 has 8 divisors (see below), whose sum is σ = 3171192. Its totient is φ = 2101248.

The previous prime is 2634557. The next prime is 2634607. The reversal of 2634605 is 5064362.

2634605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1044484 + 1590121 = 1022^2 + 1261^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2634605 - 2¹⁰ = 2633581 is a prime.

It is a super-2 number, since 2×2634605² = 13882287012050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2634607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1709 + ... + 2861.

It is an arithmetic number, because the mean of its divisors is an integer number (396399).

2^2634605 is an apocalyptic number.

It is an amenable number.

2634605 is a deficient number, since it is larger than the sum of its proper divisors (536587).

2634605 is a wasteful number, since it uses less digits than its factorization.

2634605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2634605 is about 1623.1466353968. The cubic root of 2634605 is about 138.1142546052.

Adding to 2634605 its reverse (5064362), we get a palindrome (7698967).

The spelling of 2634605 in words is "two million, six hundred thirty-four thousand, six hundred five".