80722293 has 4 divisors (see below), whose sum is σ = 107629728. Its totient is φ = 53814860.

The previous prime is 80722277. The next prime is 80722297. The reversal of 80722293 is 39222708.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80722293 - 2⁴ = 80722277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80722297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13453713 + ... + 13453718.

It is an arithmetic number, because the mean of its divisors is an integer number (26907432).

Almost surely, 2^80722293 is an apocalyptic number.

It is an amenable number.

80722293 is a deficient number, since it is larger than the sum of its proper divisors (26907435).

80722293 is a wasteful number, since it uses less digits than its factorization.

80722293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26907434.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 80722293 is about 8984.5585868199. The cubic root of 80722293 is about 432.1798323224.

The spelling of 80722293 in words is "eighty million, seven hundred twenty-two thousand, two hundred ninety-three".