2772491 has 4 divisors (see below), whose sum is σ = 2778672. Its totient is φ = 2766312.

The previous prime is 2772481. The next prime is 2772529. The reversal of 2772491 is 1942772.

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

It is a cyclic number.

It is not a de Polignac number, because 2772491 - 2¹⁰ = 2771467 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 (2772421) 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, 2360 + ... + 3333.

It is an arithmetic number, because the mean of its divisors is an integer number (694668).

2^2772491 is an apocalyptic number.

2772491 is a deficient number, since it is larger than the sum of its proper divisors (6181).

2772491 is an equidigital number, since it uses as much as digits as its factorization.

2772491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6180.

The product of its digits is 7056, while the sum is 32.

The square root of 2772491 is about 1665.0798779638. The cubic root of 2772491 is about 140.4828734248.

The spelling of 2772491 in words is "two million, seven hundred seventy-two thousand, four hundred ninety-one".