2860891 has 4 divisors (see below), whose sum is σ = 3120984. Its totient is φ = 2600800.

The previous prime is 2860883. The next prime is 2860903. The reversal of 2860891 is 1980682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2860891 - 2³ = 2860883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2860801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130030 + ... + 130051.

It is an arithmetic number, because the mean of its divisors is an integer number (780246).

2^2860891 is an apocalyptic number.

2860891 is a deficient number, since it is larger than the sum of its proper divisors (260093).

2860891 is a wasteful number, since it uses less digits than its factorization.

2860891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260092.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2860891 is about 1691.4168616873. The cubic root of 2860891 is about 141.9603638631.

The spelling of 2860891 in words is "two million, eight hundred sixty thousand, eight hundred ninety-one".