2292791 has 4 divisors (see below), whose sum is σ = 2366784. Its totient is φ = 2218800.

The previous prime is 2292781. The next prime is 2292793. The reversal of 2292791 is 1972922.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2292791 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 (2292793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36950 + ... + 37011.

It is an arithmetic number, because the mean of its divisors is an integer number (591696).

2^2292791 is an apocalyptic number.

2292791 is a deficient number, since it is larger than the sum of its proper divisors (73993).

2292791 is an equidigital number, since it uses as much as digits as its factorization.

2292791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73992.

The product of its digits is 4536, while the sum is 32.

The square root of 2292791 is about 1514.1964865895. The cubic root of 2292791 is about 131.8625558962.

It can be divided in two parts, 22 and 92791, that multiplied together give a palindrome (2041402).

The spelling of 2292791 in words is "two million, two hundred ninety-two thousand, seven hundred ninety-one".