80009421 has 8 divisors (see below), whose sum is σ = 107269344. Its totient is φ = 53044560.

The previous prime is 80009417. The next prime is 80009431. The reversal of 80009421 is 12490008.

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

It is not a de Polignac number, because 80009421 - 2² = 80009417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80009391 and 80009400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80009401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73131 + ... + 74216.

It is an arithmetic number, because the mean of its divisors is an integer number (13408668).

Almost surely, 2^80009421 is an apocalyptic number.

It is an amenable number.

80009421 is a deficient number, since it is larger than the sum of its proper divisors (27259923).

80009421 is a wasteful number, since it uses less digits than its factorization.

80009421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147531.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 80009421 is about 8944.7985444056. The cubic root of 80009421 is about 430.9038514501.

Adding to 80009421 its reverse (12490008), we get a palindrome (92499429).

The spelling of 80009421 in words is "eighty million, nine thousand, four hundred twenty-one".