80739329 has 16 divisors (see below), whose sum is σ = 89800704. Its totient is φ = 71979600.

The previous prime is 80739319. The next prime is 80739353. The reversal of 80739329 is 92393708.

It is not a de Polignac number, because 80739329 - 2⁴ = 80739313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80739319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174152 + ... + 174614.

It is an arithmetic number, because the mean of its divisors is an integer number (5612544).

Almost surely, 2^80739329 is an apocalyptic number.

It is an amenable number.

80739329 is a deficient number, since it is larger than the sum of its proper divisors (9061375).

80739329 is a wasteful number, since it uses less digits than its factorization.

80739329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 80739329 is about 8985.5066078658. The cubic root of 80739329 is about 432.2102332499.

The spelling of 80739329 in words is "eighty million, seven hundred thirty-nine thousand, three hundred twenty-nine".