80563439 has 8 divisors (see below), whose sum is σ = 92513280. Its totient is φ = 69384600.

The previous prime is 80563429. The next prime is 80563471. The reversal of 80563439 is 93436508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80563439 - 2⁸ = 80563183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80563429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192527 + ... + 192944.

It is an arithmetic number, because the mean of its divisors is an integer number (11564160).

Almost surely, 2^80563439 is an apocalyptic number.

80563439 is a deficient number, since it is larger than the sum of its proper divisors (11949841).

80563439 is a wasteful number, since it uses less digits than its factorization.

80563439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385501.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 80563439 is about 8975.7138434779. The cubic root of 80563439 is about 431.8961495196.

The spelling of 80563439 in words is "eighty million, five hundred sixty-three thousand, four hundred thirty-nine".