2678913 has 10 divisors (see below), whose sum is σ = 4001954. Its totient is φ = 1785888.

The previous prime is 2678909. The next prime is 2678941. The reversal of 2678913 is 3198762.

It can be written as a sum of positive squares in only one way, i.e., 2259009 + 419904 = 1503^2 + 648^2 .

It is not a de Polignac number, because 2678913 - 2² = 2678909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2678903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16456 + ... + 16617.

2^2678913 is an apocalyptic number.

It is an amenable number.

2678913 is a deficient number, since it is larger than the sum of its proper divisors (1323041).

2678913 is an equidigital number, since it uses as much as digits as its factorization.

2678913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33085 (or 33076 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2678913 is about 1636.7385252385. The cubic root of 2678913 is about 138.8842090749.

It can be divided in two parts, 267 and 8913, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 2678913 in words is "two million, six hundred seventy-eight thousand, nine hundred thirteen".