80930521 has 8 divisors (see below), whose sum is σ = 92548224. Its totient is φ = 69326880.

The previous prime is 80930483. The next prime is 80930539. The reversal of 80930521 is 12503908.

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

It is not a de Polignac number, because 80930521 - 2⁹ = 80930009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80930521.

It is not an unprimeable number, because it can be changed into a prime (80930021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16236 + ... + 20626.

It is an arithmetic number, because the mean of its divisors is an integer number (11568528).

Almost surely, 2^80930521 is an apocalyptic number.

It is an amenable number.

80930521 is a deficient number, since it is larger than the sum of its proper divisors (11617703).

80930521 is a wasteful number, since it uses less digits than its factorization.

80930521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7031.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 80930521 is about 8996.1392274686. The cubic root of 80930521 is about 432.5511245210.

The spelling of 80930521 in words is "eighty million, nine hundred thirty thousand, five hundred twenty-one".