80740688 has 20 divisors (see below), whose sum is σ = 178783200. Its totient is φ = 34603104.

The previous prime is 80740679. The next prime is 80740717. The reversal of 80740688 is 88604708.

It is a happy number.

It is a super-3 number, since 3×80740688³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360338 + ... + 360561.

It is an arithmetic number, because the mean of its divisors is an integer number (8939160).

Almost surely, 2^80740688 is an apocalyptic number.

It is an amenable number.

80740688 is an abundant number, since it is smaller than the sum of its proper divisors (98042512).

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

80740688 is a wasteful number, since it uses less digits than its factorization.

80740688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720914 (or 720908 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 80740688 is about 8985.5822293272. The cubic root of 80740688 is about 432.2126582160.

The spelling of 80740688 in words is "eighty million, seven hundred forty thousand, six hundred eighty-eight".