1979829 has 8 divisors (see below), whose sum is σ = 2933120. Its totient is φ = 1319868.

The previous prime is 1979827. The next prime is 1979891. The reversal of 1979829 is 9289791.

It is not a de Polignac number, because 1979829 - 2¹ = 1979827 is a prime.

It is a Duffinian number.

1979829 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979827) 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 in 7 ways as a sum of consecutive naturals, for example, 36637 + ... + 36690.

It is an arithmetic number, because the mean of its divisors is an integer number (366640).

2^1979829 is an apocalyptic number.

It is an amenable number.

1979829 is a deficient number, since it is larger than the sum of its proper divisors (953291).

1979829 is an equidigital number, since it uses as much as digits as its factorization.

1979829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73336 (or 73330 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 1979829 is about 1407.0639644309. The cubic root of 1979829 is about 125.5671085455.

The spelling of 1979829 in words is "one million, nine hundred seventy-nine thousand, eight hundred twenty-nine".