80662171 has 4 divisors (see below), whose sum is σ = 81866152. Its totient is φ = 79458192.

The previous prime is 80662147. The next prime is 80662207. The reversal of 80662171 is 17126608.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80662171 - 2²³ = 72273563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80662111) 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, 601890 + ... + 602023.

It is an arithmetic number, because the mean of its divisors is an integer number (20466538).

Almost surely, 2^80662171 is an apocalyptic number.

80662171 is a deficient number, since it is larger than the sum of its proper divisors (1203981).

80662171 is a wasteful number, since it uses less digits than its factorization.

80662171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203980.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 80662171 is about 8981.2121119591. The cubic root of 80662171 is about 432.0725097624.

Adding to 80662171 its reverse (17126608), we get a palindrome (97788779).

The spelling of 80662171 in words is "eighty million, six hundred sixty-two thousand, one hundred seventy-one".