80916693 has 36 divisors (see below), whose sum is σ = 128509920. Its totient is φ = 45233760.

The previous prime is 80916659. The next prime is 80916767. The reversal of 80916693 is 39661908.

It is not a de Polignac number, because 80916693 - 2⁹ = 80916181 is a prime.

It is a super-2 number, since 2×80916693² = 13095022412112498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80916643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 60688 + ... + 62006.

It is an arithmetic number, because the mean of its divisors is an integer number (3569720).

Almost surely, 2^80916693 is an apocalyptic number.

It is an amenable number.

80916693 is a deficient number, since it is larger than the sum of its proper divisors (47593227).

80916693 is a wasteful number, since it uses less digits than its factorization.

80916693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370 (or 1346 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 80916693 is about 8995.3706427251. The cubic root of 80916693 is about 432.5264875132.

The spelling of 80916693 in words is "eighty million, nine hundred sixteen thousand, six hundred ninety-three".