80660293 has 4 divisors (see below), whose sum is σ = 92183200. Its totient is φ = 69137388.

The previous prime is 80660273. The next prime is 80660299. The reversal of 80660293 is 39206608.

It is a happy number.

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 80660293 - 2¹³ = 80652101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80660299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5761443 + ... + 5761456.

It is an arithmetic number, because the mean of its divisors is an integer number (23045800).

Almost surely, 2^80660293 is an apocalyptic number.

It is an amenable number.

80660293 is a deficient number, since it is larger than the sum of its proper divisors (11522907).

80660293 is a wasteful number, since it uses less digits than its factorization.

80660293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11522906.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 80660293 is about 8981.1075597612. The cubic root of 80660293 is about 432.0691565240.

The spelling of 80660293 in words is "eighty million, six hundred sixty thousand, two hundred ninety-three".