2789545 has 16 divisors (see below), whose sum is σ = 3711168. Its totient is φ = 1995840.

The previous prime is 2789503. The next prime is 2789551. The reversal of 2789545 is 5459872.

It is not a de Polignac number, because 2789545 - 2¹¹ = 2787497 is a prime.

It is a super-2 number, since 2×2789545² = 15563122614050, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (100800) is a multiple of the sum of its prime divisors (840).

It is a junction number, because it is equal to n+sod(n) for n = 2789498 and 2789507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3307 + ... + 4063.

It is an arithmetic number, because the mean of its divisors is an integer number (231948).

2^2789545 is an apocalyptic number.

It is an amenable number.

2789545 is a deficient number, since it is larger than the sum of its proper divisors (921623).

2789545 is a wasteful number, since it uses less digits than its factorization.

2789545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840.

The product of its digits is 100800, while the sum is 40.

The square root of 2789545 is about 1670.1931026082. The cubic root of 2789545 is about 140.7703284422.

The spelling of 2789545 in words is "two million, seven hundred eighty-nine thousand, five hundred forty-five".