2772091 has 8 divisors (see below), whose sum is σ = 3193344. Its totient is φ = 2357160.

The previous prime is 2772089. The next prime is 2772097. The reversal of 2772091 is 1902772.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2772091 - 2¹ = 2772089 is a prime.

It is a super-3 number, since 3×2772091³ = 63906304333492648713, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2772097) 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, 595 + ... + 2428.

It is an arithmetic number, because the mean of its divisors is an integer number (399168).

2^2772091 is an apocalyptic number.

2772091 is a deficient number, since it is larger than the sum of its proper divisors (421253).

2772091 is a wasteful number, since it uses less digits than its factorization.

2772091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 2772091 is about 1664.9597592735. The cubic root of 2772091 is about 140.4761170636.

The spelling of 2772091 in words is "two million, seven hundred seventy-two thousand, ninety-one".