80709273 has 6 divisors (see below), whose sum is σ = 116580074. Its totient is φ = 53806176.

The previous prime is 80709259. The next prime is 80709281. The reversal of 80709273 is 37290708.

It can be written as a sum of positive squares in only one way, i.e., 40602384 + 40106889 = 6372^2 + 6333^2 .

It is not a de Polignac number, because 80709273 - 2⁴ = 80709257 is a prime.

It is a super-3 number, since 3×80709273³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80709203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4483840 + ... + 4483857.

Almost surely, 2^80709273 is an apocalyptic number.

It is an amenable number.

80709273 is a deficient number, since it is larger than the sum of its proper divisors (35870801).

80709273 is a wasteful number, since it uses less digits than its factorization.

80709273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8967703 (or 8967700 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 80709273 is about 8983.8339811018. The cubic root of 80709273 is about 432.1565951068.

The spelling of 80709273 in words is "eighty million, seven hundred nine thousand, two hundred seventy-three".