80689039 has 2 divisors, whose sum is σ = 80689040. Its totient is φ = 80689038.

The previous prime is 80689019. The next prime is 80689043. The reversal of 80689039 is 93098608.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80689039 - 2¹⁵ = 80656271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80688986 and 80689004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80689009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40344519 + 40344520.

It is an arithmetic number, because the mean of its divisors is an integer number (40344520).

Almost surely, 2^80689039 is an apocalyptic number.

80689039 is a deficient number, since it is larger than the sum of its proper divisors (1).

80689039 is an equidigital number, since it uses as much as digits as its factorization.

80689039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 80689039 is about 8982.7077766117. The cubic root of 80689039 is about 432.1204778716.

The spelling of 80689039 in words is "eighty million, six hundred eighty-nine thousand, thirty-nine".