80546921 has 12 divisors (see below), whose sum is σ = 99680832. Its totient is φ = 63728496.

The previous prime is 80546903. The next prime is 80546923. The reversal of 80546921 is 12964508.

It is a de Polignac number, because none of the positive numbers 2^k-80546921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80546923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32861 + ... + 35226.

It is an arithmetic number, because the mean of its divisors is an integer number (8306736).

Almost surely, 2^80546921 is an apocalyptic number.

It is an amenable number.

80546921 is a deficient number, since it is larger than the sum of its proper divisors (19133911).

80546921 is a wasteful number, since it uses less digits than its factorization.

80546921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68120 (or 68107 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 80546921 is about 8974.7936466528. The cubic root of 80546921 is about 431.8666301400.

The spelling of 80546921 in words is "eighty million, five hundred forty-six thousand, nine hundred twenty-one".