2972791 has 2 divisors, whose sum is σ = 2972792. Its totient is φ = 2972790.

The previous prime is 2972789. The next prime is 2972803. The reversal of 2972791 is 1972792.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2972791 - 2¹ = 2972789 is a prime.

Together with 2972789, it forms a pair of twin primes.

2972791 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2972791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2972701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1486395 + 1486396.

It is an arithmetic number, because the mean of its divisors is an integer number (1486396).

2^2972791 is an apocalyptic number.

2972791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2972791 is an equidigital number, since it uses as much as digits as its factorization.

2972791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876, while the sum is 37.

The square root of 2972791 is about 1724.1783550434. The cubic root of 2972791 is about 143.7876080555.

Subtracting from 2972791 its reverse (1972792), we obtain a palindrome (999999).

The spelling of 2972791 in words is "two million, nine hundred seventy-two thousand, seven hundred ninety-one".