80994211 has 4 divisors (see below), whose sum is σ = 81491272. Its totient is φ = 80497152.

The previous prime is 80994191. The next prime is 80994217. The reversal of 80994211 is 11249908.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80994211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80994217) 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, 248286 + ... + 248611.

It is an arithmetic number, because the mean of its divisors is an integer number (20372818).

Almost surely, 2^80994211 is an apocalyptic number.

80994211 is a deficient number, since it is larger than the sum of its proper divisors (497061).

80994211 is a wasteful number, since it uses less digits than its factorization.

80994211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497060.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 80994211 is about 8999.6783831424. The cubic root of 80994211 is about 432.6645632136.

The spelling of 80994211 in words is "eighty million, nine hundred ninety-four thousand, two hundred eleven".