2613634 has 4 divisors (see below), whose sum is σ = 3920454. Its totient is φ = 1306816.

The previous prime is 2613613. The next prime is 2613647. The reversal of 2613634 is 4363162.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4363162 = 2 ⋅2181581.

It can be written as a sum of positive squares in only one way, i.e., 1809025 + 804609 = 1345^2 + 897^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2613599 and 2613608.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653407 + ... + 653410.

2^2613634 is an apocalyptic number.

2613634 is a deficient number, since it is larger than the sum of its proper divisors (1306820).

2613634 is a wasteful number, since it uses less digits than its factorization.

2613634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306819.

The product of its digits is 2592, while the sum is 25.

The square root of 2613634 is about 1616.6737456890. The cubic root of 2613634 is about 137.7468227852.

Adding to 2613634 its reverse (4363162), we get a palindrome (6976796).

The spelling of 2613634 in words is "two million, six hundred thirteen thousand, six hundred thirty-four".