79822829 has 2 divisors, whose sum is σ = 79822830. Its totient is φ = 79822828.

The previous prime is 79822817. The next prime is 79822879. The reversal of 79822829 is 92822897.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77404804 + 2418025 = 8798^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 79822829 - 2¹² = 79818733 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79822879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39911414 + 39911415.

It is an arithmetic number, because the mean of its divisors is an integer number (39911415).

Almost surely, 2^79822829 is an apocalyptic number.

It is an amenable number.

79822829 is a deficient number, since it is larger than the sum of its proper divisors (1).

79822829 is an equidigital number, since it uses as much as digits as its factorization.

79822829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 47.

The square root of 79822829 is about 8934.3622603967. The cubic root of 79822829 is about 430.5686167782.

The spelling of 79822829 in words is "seventy-nine million, eight hundred twenty-two thousand, eight hundred twenty-nine".