80720234 has 8 divisors (see below), whose sum is σ = 138377568. Its totient is φ = 34594380.

The previous prime is 80720209. The next prime is 80720257. The reversal of 80720234 is 43202708.

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

It is a Curzon 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, 2882852 + ... + 2882879.

It is an arithmetic number, because the mean of its divisors is an integer number (17297196).

Almost surely, 2^80720234 is an apocalyptic number.

80720234 is a deficient number, since it is larger than the sum of its proper divisors (57657334).

80720234 is a wasteful number, since it uses less digits than its factorization.

80720234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5765740.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 80720234 is about 8984.4440006046. Note that the first 3 decimals coincide. The cubic root of 80720234 is about 432.1761577247.

The spelling of 80720234 in words is "eighty million, seven hundred twenty thousand, two hundred thirty-four".