80744709 has 8 divisors (see below), whose sum is σ = 107701120. Its totient is φ = 53809056.

The previous prime is 80744707. The next prime is 80744749. The reversal of 80744709 is 90744708.

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

It is not a de Polignac number, because 80744709 - 2¹ = 80744707 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 (80744707) 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, 12897 + ... + 18105.

It is an arithmetic number, because the mean of its divisors is an integer number (13462640).

Almost surely, 2^80744709 is an apocalyptic number.

It is an amenable number.

80744709 is a deficient number, since it is larger than the sum of its proper divisors (26956411).

80744709 is a wasteful number, since it uses less digits than its factorization.

80744709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10379.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 80744709 is about 8985.8059738679. The cubic root of 80744709 is about 432.2198330300.

Subtracting 80744709 from its reverse (90744708), we obtain a palindrome (9999999).

The spelling of 80744709 in words is "eighty million, seven hundred forty-four thousand, seven hundred nine".