1968829 has 2 divisors, whose sum is σ = 1968830. Its totient is φ = 1968828.

The previous prime is 1968817. The next prime is 1968853. The reversal of 1968829 is 9288691.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1375929 + 592900 = 1173^2 + 770^2 .

It is an emirp because it is prime and its reverse (9288691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1968829 - 2⁵ = 1968797 is a prime.

1968829 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1968899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984414 + 984415.

It is an arithmetic number, because the mean of its divisors is an integer number (984415).

2^1968829 is an apocalyptic number.

It is an amenable number.

1968829 is a deficient number, since it is larger than the sum of its proper divisors (1).

1968829 is an equidigital number, since it uses as much as digits as its factorization.

1968829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 43.

The square root of 1968829 is about 1403.1496712753. The cubic root of 1968829 is about 125.3341247561.

It can be divided in two parts, 196 and 8829, that added together give a square (9025 = 95²).

The spelling of 1968829 in words is "one million, nine hundred sixty-eight thousand, eight hundred twenty-nine".