2891064 has 64 divisors (see below), whose sum is σ = 8087040. Its totient is φ = 853760.

The previous prime is 2891051. The next prime is 2891081. The reversal of 2891064 is 4601982.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent 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, 12292 + ... + 12524.

It is an arithmetic number, because the mean of its divisors is an integer number (126360).

2^2891064 is an apocalyptic number.

2891064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2891064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4043520).

2891064 is an abundant number, since it is smaller than the sum of its proper divisors (5195976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2891064 is a wasteful number, since it uses less digits than its factorization.

2891064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2891064 is about 1700.3129123782. The cubic root of 2891064 is about 142.4576913486.

The spelling of 2891064 in words is "two million, eight hundred ninety-one thousand, sixty-four".