2723638634 has 8 divisors (see below), whose sum is σ = 4089583488. Its totient is φ = 1360444140.

The previous prime is 2723638627. The next prime is 2723638667. The reversal of 2723638634 is 4368363272.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685112 + ... + 689075.

It is an arithmetic number, because the mean of its divisors is an integer number (511197936).

Almost surely, 2^2723638634 is an apocalyptic number.

2723638634 is a deficient number, since it is larger than the sum of its proper divisors (1365944854).

2723638634 is a wasteful number, since it uses less digits than its factorization.

2723638634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375180.

The product of its digits is 870912, while the sum is 44.

The square root of 2723638634 is about 52188.4913941762. The cubic root of 2723638634 is about 1396.5285820945.

It can be divided in two parts, 2723638 and 634, that added together give a palindrome (2724272).

The spelling of 2723638634 in words is "two billion, seven hundred twenty-three million, six hundred thirty-eight thousand, six hundred thirty-four".