80799663 has 8 divisors (see below), whose sum is σ = 123123328. Its totient is φ = 46171224.

The previous prime is 80799617. The next prime is 80799679. The reversal of 80799663 is 36699708.

It is a happy number.

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

It is not a de Polignac number, because 80799663 - 2¹⁶ = 80734127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80799683) 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, 1923781 + ... + 1923822.

It is an arithmetic number, because the mean of its divisors is an integer number (15390416).

Almost surely, 2^80799663 is an apocalyptic number.

80799663 is a deficient number, since it is larger than the sum of its proper divisors (42323665).

80799663 is a wasteful number, since it uses less digits than its factorization.

80799663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847613.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 80799663 is about 8988.8632762992. The cubic root of 80799663 is about 432.3178655514.

The spelling of 80799663 in words is "eighty million, seven hundred ninety-nine thousand, six hundred sixty-three".