2678329 has 2 divisors, whose sum is σ = 2678330. Its totient is φ = 2678328.

The previous prime is 2678323. The next prime is 2678359. The reversal of 2678329 is 9238762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2108304 + 570025 = 1452^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 2678329 - 2³ = 2678321 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2⁷ + 6 + 7⁵ + 8⁵ + 3³ + 2²¹ + 9⁶ .

It is not a weakly prime, because it can be changed into another prime (2678321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1339164 + 1339165.

It is an arithmetic number, because the mean of its divisors is an integer number (1339165).

2^2678329 is an apocalyptic number.

It is an amenable number.

2678329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2678329 is an equidigital number, since it uses as much as digits as its factorization.

2678329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 2678329 is about 1636.5601119421. The cubic root of 2678329 is about 138.8741161414.

The spelling of 2678329 in words is "two million, six hundred seventy-eight thousand, three hundred twenty-nine".