80199689 has 8 divisors (see below), whose sum is σ = 85060032. Its totient is φ = 75453840.

The previous prime is 80199671. The next prime is 80199751. The reversal of 80199689 is 98699108.

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 80199689 - 2⁸ = 80199433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80199619) 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, 27179 + ... + 29984.

It is an arithmetic number, because the mean of its divisors is an integer number (10632504).

Almost surely, 2^80199689 is an apocalyptic number.

It is an amenable number.

80199689 is a deficient number, since it is larger than the sum of its proper divisors (4860343).

80199689 is a wasteful number, since it uses less digits than its factorization.

80199689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57247.

The product of its (nonzero) digits is 279936, while the sum is 50.

The square root of 80199689 is about 8955.4279071410. The cubic root of 80199689 is about 431.2451542129.

The spelling of 80199689 in words is "eighty million, one hundred ninety-nine thousand, six hundred eighty-nine".