80703720 has 48 divisors (see below), whose sum is σ = 262288260. Its totient is φ = 21520896.

The previous prime is 80703719. The next prime is 80703739. The reversal of 80703720 is 2730708.

It can be written as a sum of positive squares in 2 ways, for example, as 79816356 + 887364 = 8934^2 + 942^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111729 + ... + 112448.

Almost surely, 2^80703720 is an apocalyptic number.

It is an amenable number.

80703720 is an abundant number, since it is smaller than the sum of its proper divisors (181584540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80703720 is a wasteful number, since it uses less digits than its factorization.

80703720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224194 (or 224187 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 80703720 is about 8983.5249206534. The cubic root of 80703720 is about 432.1466837276.

The spelling of 80703720 in words is "eighty million, seven hundred three thousand, seven hundred twenty".