2647389 has 8 divisors (see below), whose sum is σ = 3589920. Its totient is φ = 1734896.

The previous prime is 2647373. The next prime is 2647391. The reversal of 2647389 is 9837462.

2647389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2647389 - 2⁴ = 2647373 is a prime.

It is a d-powerful number, because it can be written as 2 + 6³ + 4⁷ + 7 + 3⁷ + 8⁷ + 9⁶ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2647319) 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 7 ways as a sum of consecutive naturals, for example, 7302 + ... + 7655.

It is an arithmetic number, because the mean of its divisors is an integer number (448740).

2^2647389 is an apocalyptic number.

It is an amenable number.

2647389 is a deficient number, since it is larger than the sum of its proper divisors (942531).

2647389 is a wasteful number, since it uses less digits than its factorization.

2647389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15019.

The product of its digits is 72576, while the sum is 39.

The square root of 2647389 is about 1627.0798996976. The cubic root of 2647389 is about 138.3372867050.

It can be divided in two parts, 26473 and 89, that added together give a palindrome (26562).

The spelling of 2647389 in words is "two million, six hundred forty-seven thousand, three hundred eighty-nine".