2678369 has 4 divisors (see below), whose sum is σ = 2764800. Its totient is φ = 2591940.

The previous prime is 2678363. The next prime is 2678381. The reversal of 2678369 is 9638762.

2678369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2678369 is a prime.

It is a super-2 number, since 2×2678369² = 14347321000322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2678363) 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 3 ways as a sum of consecutive naturals, for example, 43169 + ... + 43230.

It is an arithmetic number, because the mean of its divisors is an integer number (691200).

2^2678369 is an apocalyptic number.

It is an amenable number.

2678369 is a deficient number, since it is larger than the sum of its proper divisors (86431).

2678369 is an equidigital number, since it uses as much as digits as its factorization.

2678369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86430.

The product of its digits is 108864, while the sum is 41.

The square root of 2678369 is about 1636.5723326514. The cubic root of 2678369 is about 138.8748074850.

The spelling of 2678369 in words is "two million, six hundred seventy-eight thousand, three hundred sixty-nine".