80789105 has 4 divisors (see below), whose sum is σ = 96946932. Its totient is φ = 64631280.

The previous prime is 80789081. The next prime is 80789161. The reversal of 80789105 is 50198708.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20214016 + 60575089 = 4496^2 + 7783^2 .

It is not a de Polignac number, because 80789105 - 2⁸ = 80788849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8078906 + ... + 8078915.

It is an arithmetic number, because the mean of its divisors is an integer number (24236733).

Almost surely, 2^80789105 is an apocalyptic number.

It is an amenable number.

80789105 is a deficient number, since it is larger than the sum of its proper divisors (16157827).

80789105 is a wasteful number, since it uses less digits than its factorization.

80789105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16157826.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 80789105 is about 8988.2759748463. The cubic root of 80789105 is about 432.2990345700.

The spelling of 80789105 in words is "eighty million, seven hundred eighty-nine thousand, one hundred five".