2938891 has 4 divisors (see below), whose sum is σ = 2942632. Its totient is φ = 2935152.

The previous prime is 2938861. The next prime is 2938927. The reversal of 2938891 is 1988392.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2938891 - 2⁷ = 2938763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2938801) 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, 186 + ... + 2431.

It is an arithmetic number, because the mean of its divisors is an integer number (735658).

2^2938891 is an apocalyptic number.

2938891 is a deficient number, since it is larger than the sum of its proper divisors (3741).

2938891 is a wasteful number, since it uses less digits than its factorization.

2938891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740.

The product of its digits is 31104, while the sum is 40.

The square root of 2938891 is about 1714.3193984786. The cubic root of 2938891 is about 143.2389601710.

The spelling of 2938891 in words is "two million, nine hundred thirty-eight thousand, eight hundred ninety-one".