80909693 has 8 divisors (see below), whose sum is σ = 81913728. Its totient is φ = 79910064.

The previous prime is 80909677. The next prime is 80909707. The reversal of 80909693 is 39690908.

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

It is a cyclic number.

It is not a de Polignac number, because 80909693 - 2⁴ = 80909677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80909603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49355 + ... + 50967.

It is an arithmetic number, because the mean of its divisors is an integer number (10239216).

Almost surely, 2^80909693 is an apocalyptic number.

It is an amenable number.

80909693 is a deficient number, since it is larger than the sum of its proper divisors (1004035).

80909693 is a wasteful number, since it uses less digits than its factorization.

80909693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 80909693 is about 8994.9815452840. The cubic root of 80909693 is about 432.5140147151.

The spelling of 80909693 in words is "eighty million, nine hundred nine thousand, six hundred ninety-three".