80721303 has 32 divisors (see below), whose sum is σ = 120637440. Its totient is φ = 47675520.

The previous prime is 80721269. The next prime is 80721323. The reversal of 80721303 is 30312708.

It is not a de Polignac number, because 80721303 - 2¹⁷ = 80590231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80721323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216225 + ... + 216597.

It is an arithmetic number, because the mean of its divisors is an integer number (3769920).

Almost surely, 2^80721303 is an apocalyptic number.

80721303 is a deficient number, since it is larger than the sum of its proper divisors (39916137).

80721303 is a wasteful number, since it uses less digits than its factorization.

80721303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 80721303 is about 8984.5034921246. The cubic root of 80721303 is about 432.1780655251.

The spelling of 80721303 in words is "eighty million, seven hundred twenty-one thousand, three hundred three".