2772831 has 8 divisors (see below), whose sum is σ = 3717040. Its totient is φ = 1838592.

The previous prime is 2772829. The next prime is 2772839. The reversal of 2772831 is 1382772.

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

It is not a de Polignac number, because 2772831 - 2¹ = 2772829 is a prime.

It is a super-2 number, since 2×2772831² = 15377183509122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772839) 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, 1816 + ... + 2973.

It is an arithmetic number, because the mean of its divisors is an integer number (464630).

2^2772831 is an apocalyptic number.

2772831 is a deficient number, since it is larger than the sum of its proper divisors (944209).

2772831 is a wasteful number, since it uses less digits than its factorization.

2772831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985.

The product of its digits is 4704, while the sum is 30.

The square root of 2772831 is about 1665.1819720379. The cubic root of 2772831 is about 140.4886158209.

The spelling of 2772831 in words is "two million, seven hundred seventy-two thousand, eight hundred thirty-one".