2190829 has 2 divisors, whose sum is σ = 2190830. Its totient is φ = 2190828.

The previous prime is 2190823. The next prime is 2190857. The reversal of 2190829 is 9280912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2160900 + 29929 = 1470^2 + 173^2 .

It is a cyclic number.

It is not a de Polignac number, because 2190829 - 2³ = 2190821 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2190829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2190821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095414 + 1095415.

It is an arithmetic number, because the mean of its divisors is an integer number (1095415).

2^2190829 is an apocalyptic number.

It is an amenable number.

2190829 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190829 is an equidigital number, since it uses as much as digits as its factorization.

2190829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2190829 is about 1480.1449253367. The cubic root of 2190829 is about 129.8781698857.

The spelling of 2190829 in words is "two million, one hundred ninety thousand, eight hundred twenty-nine".