80421093 has 28 divisors (see below), whose sum is σ = 121821408. Its totient is φ = 53061480.

The previous prime is 80421079. The next prime is 80421097. The reversal of 80421093 is 39012408.

It is not a de Polignac number, because 80421093 - 2¹⁰ = 80420069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80421097) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 77488 + ... + 78518.

Almost surely, 2^80421093 is an apocalyptic number.

It is an amenable number.

80421093 is a deficient number, since it is larger than the sum of its proper divisors (41400315).

80421093 is a wasteful number, since it uses less digits than its factorization.

80421093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 80421093 is about 8967.7808291684. The cubic root of 80421093 is about 431.6416298759.

The spelling of 80421093 in words is "eighty million, four hundred twenty-one thousand, ninety-three".