2831329 has 2 divisors, whose sum is σ = 2831330. Its totient is φ = 2831328.

The previous prime is 2831321. The next prime is 2831341. The reversal of 2831329 is 9231382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2798929 + 32400 = 1673^2 + 180^2 .

It is a cyclic number.

It is not a de Polignac number, because 2831329 - 2³ = 2831321 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2831297 and 2831306.

It is not a weakly prime, because it can be changed into another prime (2831321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1415664 + 1415665.

It is an arithmetic number, because the mean of its divisors is an integer number (1415665).

2^2831329 is an apocalyptic number.

It is an amenable number.

2831329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2831329 is an equidigital number, since it uses as much as digits as its factorization.

2831329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 2831329 is about 1682.6553420115. The cubic root of 2831329 is about 141.4697042941.

It can be divided in two parts, 2831 and 329, that added together give a triangular number (3160 = T₇₉).

The spelling of 2831329 in words is "two million, eight hundred thirty-one thousand, three hundred twenty-nine".