80930520 has 192 divisors, whose sum is σ = 291133440. Its totient is φ = 19334400.

The previous prime is 80930483. The next prime is 80930539. The reversal of 80930520 is 2503908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 423625 + ... + 423815.

It is an arithmetic number, because the mean of its divisors is an integer number (1516320).

Almost surely, 2^80930520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80930520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145566720).

80930520 is an abundant number, since it is smaller than the sum of its proper divisors (210202920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80930520 is a wasteful number, since it uses less digits than its factorization.

80930520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 80930520 is about 8996.1391718892. The cubic root of 80930520 is about 432.5511227395.

It can be divided in two parts, 809 and 30520, that added together give a square (31329 = 177²).

The spelling of 80930520 in words is "eighty million, nine hundred thirty thousand, five hundred twenty".