80650439 has 4 divisors (see below), whose sum is σ = 80697456. Its totient is φ = 80603424.

The previous prime is 80650411. The next prime is 80650457. The reversal of 80650439 is 93405608.

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

It is a cyclic number.

It is not a de Polignac number, because 80650439 - 2⁸ = 80650183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80650399 and 80650408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80650469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20834 + ... + 24399.

It is an arithmetic number, because the mean of its divisors is an integer number (20174364).

Almost surely, 2^80650439 is an apocalyptic number.

80650439 is a deficient number, since it is larger than the sum of its proper divisors (47017).

80650439 is a wasteful number, since it uses less digits than its factorization.

80650439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47016.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 80650439 is about 8980.5589469698. The cubic root of 80650439 is about 432.0515609897.

The spelling of 80650439 in words is "eighty million, six hundred fifty thousand, four hundred thirty-nine".