2880689 has 4 divisors (see below), whose sum is σ = 3292224. Its totient is φ = 2469156.

The previous prime is 2880671. The next prime is 2880707. The reversal of 2880689 is 9860882.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2880671) and next prime (2880707).

It is a cyclic number.

It is not a de Polignac number, because 2880689 - 2⁸ = 2880433 is a prime.

It is a super-2 number, since 2×2880689² = 16596738229442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2880629) 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 3 ways as a sum of consecutive naturals, for example, 205757 + ... + 205770.

It is an arithmetic number, because the mean of its divisors is an integer number (823056).

2^2880689 is an apocalyptic number.

It is an amenable number.

2880689 is a deficient number, since it is larger than the sum of its proper divisors (411535).

2880689 is an equidigital number, since it uses as much as digits as its factorization.

2880689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411534.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 2880689 is about 1697.2592612798. The cubic root of 2880689 is about 142.2870771059.

The spelling of 2880689 in words is "two million, eight hundred eighty thousand, six hundred eighty-nine".