80710505 has 8 divisors (see below), whose sum is σ = 99470472. Its totient is φ = 62823168.

The previous prime is 80710481. The next prime is 80710507. The reversal of 80710505 is 50501708.

It can be written as a sum of positive squares in 4 ways, for example, as 44662489 + 36048016 = 6683^2 + 6004^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80710505 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80710507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217952 + ... + 218321.

It is an arithmetic number, because the mean of its divisors is an integer number (12433809).

Almost surely, 2^80710505 is an apocalyptic number.

It is an amenable number.

80710505 is a deficient number, since it is larger than the sum of its proper divisors (18759967).

80710505 is a wasteful number, since it uses less digits than its factorization.

80710505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436315.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 80710505 is about 8983.9025484474. The cubic root of 80710505 is about 432.1587940041.

The spelling of 80710505 in words is "eighty million, seven hundred ten thousand, five hundred five".