80572829 has 2 divisors, whose sum is σ = 80572830. Its totient is φ = 80572828.

The previous prime is 80572823. The next prime is 80572837. The reversal of 80572829 is 92827508.

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., 77915929 + 2656900 = 8827^2 + 1630^2 .

It is a cyclic number.

It is not a de Polignac number, because 80572829 - 2¹⁶ = 80507293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80572823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40286414 + 40286415.

It is an arithmetic number, because the mean of its divisors is an integer number (40286415).

Almost surely, 2^80572829 is an apocalyptic number.

It is an amenable number.

80572829 is a deficient number, since it is larger than the sum of its proper divisors (1).

80572829 is an equidigital number, since it uses as much as digits as its factorization.

80572829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 80572829 is about 8976.2369064102. The cubic root of 80572829 is about 431.9129286250.

The spelling of 80572829 in words is "eighty million, five hundred seventy-two thousand, eight hundred twenty-nine".