2928191 has 8 divisors (see below), whose sum is σ = 3415200. Its totient is φ = 2509584.

The previous prime is 2928181. The next prime is 2928203. The reversal of 2928191 is 1918292.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2928191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2928151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3926 + ... + 4611.

It is an arithmetic number, because the mean of its divisors is an integer number (426900).

2^2928191 is an apocalyptic number.

2928191 is a deficient number, since it is larger than the sum of its proper divisors (487009).

2928191 is an frugal number, since it uses more digits than its factorization.

2928191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8558 (or 8544 counting only the distinct ones).

The product of its digits is 2592, while the sum is 32.

The square root of 2928191 is about 1711.1957807335. The cubic root of 2928191 is about 143.0649125805.

The spelling of 2928191 in words is "two million, nine hundred twenty-eight thousand, one hundred ninety-one".