2764889 has 8 divisors (see below), whose sum is σ = 2904960. Its totient is φ = 2627856.

The previous prime is 2764873. The next prime is 2764891. The reversal of 2764889 is 9884672.

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 2764889 - 2⁴ = 2764873 is a prime.

It is a super-2 number, since 2×2764889² = 15289222364642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2764819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1232 + ... + 2654.

It is an arithmetic number, because the mean of its divisors is an integer number (363120).

2^2764889 is an apocalyptic number.

2764889 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2764889 is a deficient number, since it is larger than the sum of its proper divisors (140071).

2764889 is a wasteful number, since it uses less digits than its factorization.

2764889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519.

The product of its digits is 193536, while the sum is 44.

The square root of 2764889 is about 1662.7955376414. The cubic root of 2764889 is about 140.3543574226.

Subtracting from 2764889 its product of digits (193536), we obtain a cube (2571353 = 137³).

The spelling of 2764889 in words is "two million, seven hundred sixty-four thousand, eight hundred eighty-nine".