80544765 has 16 divisors (see below), whose sum is σ = 147282048. Its totient is φ = 36820416.

The previous prime is 80544757. The next prime is 80544767. The reversal of 80544765 is 56744508.

It is not a de Polignac number, because 80544765 - 2³ = 80544757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80544767) 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, 383442 + ... + 383651.

It is an arithmetic number, because the mean of its divisors is an integer number (9205128).

Almost surely, 2^80544765 is an apocalyptic number.

It is an amenable number.

80544765 is a deficient number, since it is larger than the sum of its proper divisors (66737283).

80544765 is a wasteful number, since it uses less digits than its factorization.

80544765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767108.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 80544765 is about 8974.6735316668. The cubic root of 80544765 is about 431.8627768466.

The spelling of 80544765 in words is "eighty million, five hundred forty-four thousand, seven hundred sixty-five".