2679638 has 16 divisors (see below), whose sum is σ = 4517856.
Its totient is φ = 1182720.
The previous prime is 2679619. The next prime is 2679641. The reversal of 2679638 is 8369762.
2679638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×26796382 = 14360919622088, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2679595 and 2679604.
It is a congruent number.
It is an unprimeable number.
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, 1643 + ... + 2838.
It is an arithmetic number, because the mean of its divisors is an integer number (282366).
22679638 is an apocalyptic number.
2679638 is a deficient number, since it is larger than the sum of its proper divisors (1838218).
2679638 is a wasteful number, since it uses less digits than its factorization.
2679638 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4519.
The product of its digits is 108864, while the sum is 41.
The square root of 2679638 is about 1636.9599872935.
The cubic root of 2679638 is about 138.8967367891.
The spelling of 2679638 in words is "two million, six hundred seventy-nine thousand, six hundred thirty-eight".