80723269 has 16 divisors (see below), whose sum is σ = 92664000. Its totient is φ = 69637120.

The previous prime is 80723257. The next prime is 80723273. The reversal of 80723269 is 96232708.

It is not a de Polignac number, because 80723269 - 2⁹ = 80722757 is a prime.

It is a super-2 number, since 2×80723269² = 13032492316092722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80723369) 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, 16677 + ... + 20965.

It is an arithmetic number, because the mean of its divisors is an integer number (5791500).

Almost surely, 2^80723269 is an apocalyptic number.

It is an amenable number.

80723269 is a deficient number, since it is larger than the sum of its proper divisors (11940731).

80723269 is a wasteful number, since it uses less digits than its factorization.

80723269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 80723269 is about 8984.6129020676. The cubic root of 80723269 is about 432.1815741205.

The spelling of 80723269 in words is "eighty million, seven hundred twenty-three thousand, two hundred sixty-nine".