80828421 has 16 divisors (see below), whose sum is σ = 114307200. Its totient is φ = 50628608.

The previous prime is 80828411. The next prime is 80828437. The reversal of 80828421 is 12482808.

It is a cyclic number.

It is not a de Polignac number, because 80828421 - 2⁵ = 80828389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80828411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41845 + ... + 43733.

It is an arithmetic number, because the mean of its divisors is an integer number (7144200).

Almost surely, 2^80828421 is an apocalyptic number.

It is an amenable number.

80828421 is a deficient number, since it is larger than the sum of its proper divisors (33478779).

80828421 is a wasteful number, since it uses less digits than its factorization.

80828421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748.

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 80828421 is about 8990.4627800798. The cubic root of 80828421 is about 432.3691492738.

The spelling of 80828421 in words is "eighty million, eight hundred twenty-eight thousand, four hundred twenty-one".