2678393 has 8 divisors (see below), whose sum is σ = 2772480. Its totient is φ = 2585520.

The previous prime is 2678387. The next prime is 2678399. The reversal of 2678393 is 3938762.

It is an interprime number because it is at equal distance from previous prime (2678387) and next prime (2678399).

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 2678393 - 2⁶ = 2678329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2678399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6878 + ... + 7256.

It is an arithmetic number, because the mean of its divisors is an integer number (346560).

2^2678393 is an apocalyptic number.

It is an amenable number.

2678393 is a deficient number, since it is larger than the sum of its proper divisors (94087).

2678393 is a wasteful number, since it uses less digits than its factorization.

2678393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607.

The product of its digits is 54432, while the sum is 38.

The square root of 2678393 is about 1636.5796650331. The cubic root of 2678393 is about 138.8752222878.

The spelling of 2678393 in words is "two million, six hundred seventy-eight thousand, three hundred ninety-three".