2877945 has 16 divisors (see below), whose sum is σ = 5262720. Its totient is φ = 1315584.

The previous prime is 2877943. The next prime is 2877983. The reversal of 2877945 is 5497782.

It is not a de Polignac number, because 2877945 - 2¹ = 2877943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2877897 and 2877906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2877943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13600 + ... + 13809.

It is an arithmetic number, because the mean of its divisors is an integer number (328920).

2^2877945 is an apocalyptic number.

It is an amenable number.

2877945 is a deficient number, since it is larger than the sum of its proper divisors (2384775).

2877945 is a wasteful number, since it uses less digits than its factorization.

2877945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27424.

The product of its digits is 141120, while the sum is 42.

The square root of 2877945 is about 1696.4507066225. The cubic root of 2877945 is about 142.2418842400.

The spelling of 2877945 in words is "two million, eight hundred seventy-seven thousand, nine hundred forty-five".