80933311 has 4 divisors (see below), whose sum is σ = 85694112. Its totient is φ = 76172512.

The previous prime is 80933273. The next prime is 80933317. The reversal of 80933311 is 11333908.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80933311 - 2⁷ = 80933183 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 80933311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80933317) 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 3 ways as a sum of consecutive naturals, for example, 2380375 + ... + 2380408.

It is an arithmetic number, because the mean of its divisors is an integer number (21423528).

Almost surely, 2^80933311 is an apocalyptic number.

80933311 is a deficient number, since it is larger than the sum of its proper divisors (4760801).

80933311 is a wasteful number, since it uses less digits than its factorization.

80933311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760800.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 80933311 is about 8996.2942926518. The cubic root of 80933311 is about 432.5560950553.

The spelling of 80933311 in words is "eighty million, nine hundred thirty-three thousand, three hundred eleven".