2892091 has 4 divisors (see below), whose sum is σ = 3062232. Its totient is φ = 2721952.

The previous prime is 2892079. The next prime is 2892107. The reversal of 2892091 is 1902982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1902982 = 2 ⋅951491.

It is a cyclic number.

It is not a de Polignac number, because 2892091 - 2⁷ = 2891963 is a prime.

It is a Duffinian number.

2892091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2892191) 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, 85045 + ... + 85078.

It is an arithmetic number, because the mean of its divisors is an integer number (765558).

2^2892091 is an apocalyptic number.

2892091 is a deficient number, since it is larger than the sum of its proper divisors (170141).

2892091 is a wasteful number, since it uses less digits than its factorization.

2892091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170140.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2892091 is about 1700.6148887976. The cubic root of 2892091 is about 142.4745578873.

The spelling of 2892091 in words is "two million, eight hundred ninety-two thousand, ninety-one".