82028929 has 4 divisors (see below), whose sum is σ = 82369540. Its totient is φ = 81688320.

The previous prime is 82028899. The next prime is 82028941. The reversal of 82028929 is 92982028.

It is a happy number.

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 71368704 + 10660225 = 8448^2 + 3265^2 .

It is a cyclic number.

It is not a de Polignac number, because 82028929 - 2⁷ = 82028801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82028891 and 82028900.

It is not an unprimeable number, because it can be changed into a prime (82028329) 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, 169944 + ... + 170425.

It is an arithmetic number, because the mean of its divisors is an integer number (20592385).

Almost surely, 2^82028929 is an apocalyptic number.

It is an amenable number.

82028929 is a deficient number, since it is larger than the sum of its proper divisors (340611).

82028929 is a wasteful number, since it uses less digits than its factorization.

82028929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340610.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 82028929 is about 9056.9823340890. The cubic root of 82028929 is about 434.4992326126.

The spelling of 82028929 in words is "eighty-two million, twenty-eight thousand, nine hundred twenty-nine".