80045279 has 4 divisors (see below), whose sum is σ = 80063184. Its totient is φ = 80027376.

The previous prime is 80045263. The next prime is 80045293. The reversal of 80045279 is 97254008.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 80045279 - 2⁴ = 80045263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80045219) 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, 4019 + ... + 13275.

It is an arithmetic number, because the mean of its divisors is an integer number (20015796).

Almost surely, 2^80045279 is an apocalyptic number.

80045279 is a deficient number, since it is larger than the sum of its proper divisors (17905).

80045279 is an equidigital number, since it uses as much as digits as its factorization.

80045279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17904.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 80045279 is about 8946.8027249962. The cubic root of 80045279 is about 430.9682148813.

The spelling of 80045279 in words is "eighty million, forty-five thousand, two hundred seventy-nine".