80899689 has 8 divisors (see below), whose sum is σ = 116163712. Its totient is φ = 49784400.

The previous prime is 80899673. The next prime is 80899703. The reversal of 80899689 is 98699808.

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

It is not a de Polignac number, because 80899689 - 2⁴ = 80899673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80892689) 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, 1037137 + ... + 1037214.

It is an arithmetic number, because the mean of its divisors is an integer number (14520464).

Almost surely, 2^80899689 is an apocalyptic number.

It is an amenable number.

80899689 is a deficient number, since it is larger than the sum of its proper divisors (35264023).

80899689 is a wasteful number, since it uses less digits than its factorization.

80899689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074367.

The product of its (nonzero) digits is 2239488, while the sum is 57.

The square root of 80899689 is about 8994.4254402380. The cubic root of 80899689 is about 432.4961880560.

The spelling of 80899689 in words is "eighty million, eight hundred ninety-nine thousand, six hundred eighty-nine".