80744909 has 8 divisors (see below), whose sum is σ = 92334528. Its totient is φ = 69168960.

The previous prime is 80744899. The next prime is 80744921. The reversal of 80744909 is 90944708.

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

It is a de Polignac number, because none of the positive numbers 2^k-80744909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80744929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19589 + ... + 23349.

It is an arithmetic number, because the mean of its divisors is an integer number (11541816).

Almost surely, 2^80744909 is an apocalyptic number.

It is an amenable number.

80744909 is a deficient number, since it is larger than the sum of its proper divisors (11589619).

80744909 is a wasteful number, since it uses less digits than its factorization.

80744909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 80744909 is about 8985.8171025233. The cubic root of 80744909 is about 432.2201898909.

The spelling of 80744909 in words is "eighty million, seven hundred forty-four thousand, nine hundred nine".