80712833 has 4 divisors (see below), whose sum is σ = 80822208. Its totient is φ = 80603460.

The previous prime is 80712811. The next prime is 80712851. The reversal of 80712833 is 33821708.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80712833 - 2¹⁴ = 80696449 is a prime.

It is a super-2 number, since 2×80712833² = 13029122821771778, which contains 22 as substring.

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 80712833.

It is not an unprimeable number, because it can be changed into a prime (80712803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53573 + ... + 55058.

It is an arithmetic number, because the mean of its divisors is an integer number (20205552).

Almost surely, 2^80712833 is an apocalyptic number.

It is an amenable number.

80712833 is a deficient number, since it is larger than the sum of its proper divisors (109375).

80712833 is a wasteful number, since it uses less digits than its factorization.

80712833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109374.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 80712833 is about 8984.0321125873. The cubic root of 80712833 is about 432.1629490023.

The spelling of 80712833 in words is "eighty million, seven hundred twelve thousand, eight hundred thirty-three".