80905750 has 16 divisors (see below), whose sum is σ = 151456032. Its totient is φ = 32362200.

The previous prime is 80905723. The next prime is 80905757. The reversal of 80905750 is 5750908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80905757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161562 + ... + 162061.

It is an arithmetic number, because the mean of its divisors is an integer number (9466002).

Almost surely, 2^80905750 is an apocalyptic number.

80905750 is a deficient number, since it is larger than the sum of its proper divisors (70550282).

80905750 is a wasteful number, since it uses less digits than its factorization.

80905750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323640 (or 323630 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 80905750 is about 8994.7623648432. The cubic root of 80905750 is about 432.5069886494.

The spelling of 80905750 in words is "eighty million, nine hundred five thousand, seven hundred fifty".