80563659 has 8 divisors (see below), whose sum is σ = 117183552. Its totient is φ = 48826440.

The previous prime is 80563633. The next prime is 80563673. The reversal of 80563659 is 95636508.

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

It is not a de Polignac number, because 80563659 - 2⁵ = 80563627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80563659.

It is not an unprimeable number, because it can be changed into a prime (80563759) 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, 1220629 + ... + 1220694.

It is an arithmetic number, because the mean of its divisors is an integer number (14647944).

Almost surely, 2^80563659 is an apocalyptic number.

80563659 is a deficient number, since it is larger than the sum of its proper divisors (36619893).

80563659 is a wasteful number, since it uses less digits than its factorization.

80563659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441337.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 80563659 is about 8975.7260987621. The cubic root of 80563659 is about 431.8965426552.

The spelling of 80563659 in words is "eighty million, five hundred sixty-three thousand, six hundred fifty-nine".