2773231 has 2 divisors, whose sum is σ = 2773232. Its totient is φ = 2773230.

The previous prime is 2773223. The next prime is 2773237. The reversal of 2773231 is 1323772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2773231 - 2³ = 2773223 is a prime.

It is a super-2 number, since 2×2773231² = 15381620358722, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2773196 and 2773205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2773237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1386615 + 1386616.

It is an arithmetic number, because the mean of its divisors is an integer number (1386616).

2^2773231 is an apocalyptic number.

2773231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2773231 is an equidigital number, since it uses as much as digits as its factorization.

2773231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 25.

The square root of 2773231 is about 1665.3020747000. The cubic root of 2773231 is about 140.4953709801.

The spelling of 2773231 in words is "two million, seven hundred seventy-three thousand, two hundred thirty-one".