80868061 has 4 divisors (see below), whose sum is σ = 80984124. Its totient is φ = 80752000.

The previous prime is 80868041. The next prime is 80868091. The reversal of 80868061 is 16086808.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71064900 + 9803161 = 8430^2 + 3131^2 .

It is a cyclic number.

It is not a de Polignac number, because 80868061 - 2¹¹ = 80866013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80868061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80868001) 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, 56980 + ... + 58381.

It is an arithmetic number, because the mean of its divisors is an integer number (20246031).

Almost surely, 2^80868061 is an apocalyptic number.

It is an amenable number.

80868061 is a deficient number, since it is larger than the sum of its proper divisors (116063).

80868061 is a wasteful number, since it uses less digits than its factorization.

80868061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116062.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 80868061 is about 8992.6670682284. The cubic root of 80868061 is about 432.4398187728.

The spelling of 80868061 in words is "eighty million, eight hundred sixty-eight thousand, sixty-one".