2864739 has 16 divisors (see below), whose sum is σ = 3940352. Its totient is φ = 1850688.

The previous prime is 2864737. The next prime is 2864749. The reversal of 2864739 is 9374682.

It is not a de Polignac number, because 2864739 - 2¹ = 2864737 is a prime.

It is a Duffinian number.

2864739 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2864697 and 2864706.

It is not an unprimeable number, because it can be changed into a prime (2864737) 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 15 ways as a sum of consecutive naturals, for example, 22494 + ... + 22620.

It is an arithmetic number, because the mean of its divisors is an integer number (246272).

2^2864739 is an apocalyptic number.

2864739 is a deficient number, since it is larger than the sum of its proper divisors (1075613).

2864739 is a wasteful number, since it uses less digits than its factorization.

2864739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306.

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

The square root of 2864739 is about 1692.5539873221. The cubic root of 2864739 is about 142.0239825922.

The spelling of 2864739 in words is "two million, eight hundred sixty-four thousand, seven hundred thirty-nine".