80685849 has 8 divisors (see below), whose sum is σ = 108145152. Its totient is φ = 53508560.

The previous prime is 80685779. The next prime is 80685851. The reversal of 80685849 is 94858608.

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 80685849 - 2⁷ = 80685721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80685798 and 80685807.

It is not an unprimeable number, because it can be changed into a prime (80605849) 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, 69834 + ... + 70979.

It is an arithmetic number, because the mean of its divisors is an integer number (13518144).

Almost surely, 2^80685849 is an apocalyptic number.

It is an amenable number.

80685849 is a deficient number, since it is larger than the sum of its proper divisors (27459303).

80685849 is a wasteful number, since it uses less digits than its factorization.

80685849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141007.

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 80685849 is about 8982.5302114716. The cubic root of 80685849 is about 432.1147832423.

The spelling of 80685849 in words is "eighty million, six hundred eighty-five thousand, eight hundred forty-nine".