2891025 has 24 divisors (see below), whose sum is σ = 5312160. Its totient is φ = 1541520.

The previous prime is 2891023. The next prime is 2891041. The reversal of 2891025 is 5201982.

It is not a de Polignac number, because 2891025 - 2¹ = 2891023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2891025.

It is not an unprimeable number, because it can be changed into a prime (2891023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1467 + ... + 2816.

It is an arithmetic number, because the mean of its divisors is an integer number (221340).

2^2891025 is an apocalyptic number.

2891025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2891025 is a deficient number, since it is larger than the sum of its proper divisors (2421135).

2891025 is a wasteful number, since it uses less digits than its factorization.

2891025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302 (or 4291 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 2891025 is about 1700.3014438622. The cubic root of 2891025 is about 142.4570507684.

The spelling of 2891025 in words is "two million, eight hundred ninety-one thousand, twenty-five".