2872905 has 16 divisors (see below), whose sum is σ = 5253504. Its totient is φ = 1313280.

The previous prime is 2872897. The next prime is 2872921. The reversal of 2872905 is 5092782.

It is not a de Polignac number, because 2872905 - 2³ = 2872897 is a prime.

2872905 is a lucky number.

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, 13576 + ... + 13785.

It is an arithmetic number, because the mean of its divisors is an integer number (328344).

2^2872905 is an apocalyptic number.

It is an amenable number.

2872905 is a deficient number, since it is larger than the sum of its proper divisors (2380599).

2872905 is a wasteful number, since it uses less digits than its factorization.

2872905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27376.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 2872905 is about 1694.9646014003. The cubic root of 2872905 is about 142.1588020414.

The spelling of 2872905 in words is "two million, eight hundred seventy-two thousand, nine hundred five".