80430921 has 8 divisors (see below), whose sum is σ = 119156960. Its totient is φ = 53620596.

The previous prime is 80430913. The next prime is 80430929. The reversal of 80430921 is 12903408.

It is an interprime number because it is at equal distance from previous prime (80430913) and next prime (80430929).

It is not a de Polignac number, because 80430921 - 2³ = 80430913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2978923 = 80430921 / (8 + 0 + 4 + 3 + 0 + 9 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80430929) 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, 1489435 + ... + 1489488.

It is an arithmetic number, because the mean of its divisors is an integer number (14894620).

Almost surely, 2^80430921 is an apocalyptic number.

It is an amenable number.

80430921 is a deficient number, since it is larger than the sum of its proper divisors (38726039).

80430921 is a wasteful number, since it uses less digits than its factorization.

80430921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978932 (or 2978926 counting only the distinct ones).

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

The square root of 80430921 is about 8968.3287740805. The cubic root of 80430921 is about 431.6592123325.

The spelling of 80430921 in words is "eighty million, four hundred thirty thousand, nine hundred twenty-one".