979829 has 4 divisors (see below), whose sum is σ = 1037484. Its totient is φ = 922176.

The previous prime is 979819. The next prime is 979831. The reversal of 979829 is 928979.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 677329 + 302500 = 823^2 + 550^2 .

It is a cyclic number.

It is not a de Polignac number, because 979829 - 2¹⁶ = 914293 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 979829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28802 + ... + 28835.

It is an arithmetic number, because the mean of its divisors is an integer number (259371).

2⁹⁷⁹⁸²⁹ is an apocalyptic number.

It is an amenable number.

979829 is a deficient number, since it is larger than the sum of its proper divisors (57655).

979829 is a wasteful number, since it uses less digits than its factorization.

979829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57654.

The product of its digits is 81648, while the sum is 44.

The square root of 979829 is about 989.8631218507. The cubic root of 979829 is about 99.3230612123.

The spelling of 979829 in words is "nine hundred seventy-nine thousand, eight hundred twenty-nine".