80709688 has 16 divisors (see below), whose sum is σ = 151501680. Its totient is φ = 40309248.

The previous prime is 80709683. The next prime is 80709719. The reversal of 80709688 is 88690708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80709683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2520 + ... + 12952.

It is an arithmetic number, because the mean of its divisors is an integer number (9468855).

Almost surely, 2^80709688 is an apocalyptic number.

It is an amenable number.

80709688 is a deficient number, since it is larger than the sum of its proper divisors (70791992).

80709688 is a wasteful number, since it uses less digits than its factorization.

80709688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11406 (or 11402 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 80709688 is about 8983.8570781152. The cubic root of 80709688 is about 432.1573358093.

The spelling of 80709688 in words is "eighty million, seven hundred nine thousand, six hundred eighty-eight".