80734173 has 72 divisors (see below), whose sum is σ = 134834400. Its totient is φ = 42771456.

The previous prime is 80734169. The next prime is 80734189. The reversal of 80734173 is 37143708.

It is not a de Polignac number, because 80734173 - 2² = 80734169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80734103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2783923 + ... + 2783951.

It is an arithmetic number, because the mean of its divisors is an integer number (1872700).

Almost surely, 2^80734173 is an apocalyptic number.

It is an amenable number.

80734173 is a deficient number, since it is larger than the sum of its proper divisors (54100227).

80734173 is a wasteful number, since it uses less digits than its factorization.

80734173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 80734173 is about 8985.2196968132. The cubic root of 80734173 is about 432.2010327630.

It can be divided in two parts, 8073 and 4173, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 80734173 in words is "eighty million, seven hundred thirty-four thousand, one hundred seventy-three".