80879305 has 16 divisors (see below), whose sum is σ = 104799744. Its totient is φ = 59567040.

The previous prime is 80879303. The next prime is 80879363. The reversal of 80879305 is 50397808.

It is not a de Polignac number, because 80879305 - 2¹ = 80879303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80879303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26572 + ... + 29458.

It is an arithmetic number, because the mean of its divisors is an integer number (6549984).

Almost surely, 2^80879305 is an apocalyptic number.

It is an amenable number.

80879305 is a deficient number, since it is larger than the sum of its proper divisors (23920439).

80879305 is a wasteful number, since it uses less digits than its factorization.

80879305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 80879305 is about 8993.2922225401. The cubic root of 80879305 is about 432.4598601749.

The spelling of 80879305 in words is "eighty million, eight hundred seventy-nine thousand, three hundred five".