2643331 has 2 divisors, whose sum is σ = 2643332. Its totient is φ = 2643330.

The previous prime is 2643307. The next prime is 2643341. The reversal of 2643331 is 1333462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2643331 - 2¹¹ = 2641283 is a prime.

It is a super-2 number, since 2×2643331² = 13974397551122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2643341) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321665 + 1321666.

It is an arithmetic number, because the mean of its divisors is an integer number (1321666).

2^2643331 is an apocalyptic number.

2643331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2643331 is an equidigital number, since it uses as much as digits as its factorization.

2643331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 22.

The square root of 2643331 is about 1625.8324021866. The cubic root of 2643331 is about 138.2665679976.

Adding to 2643331 its reverse (1333462), we get a palindrome (3976793).

The spelling of 2643331 in words is "two million, six hundred forty-three thousand, three hundred thirty-one".