80661027 has 8 divisors (see below), whose sum is σ = 107724816. Its totient is φ = 53685632.

The previous prime is 80661017. The next prime is 80661047. The reversal of 80661027 is 72016608.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80661027 - 2⁶ = 80660963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80660985 and 80661003.

It is not an unprimeable number, because it can be changed into a prime (80661017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19938 + ... + 23639.

It is an arithmetic number, because the mean of its divisors is an integer number (13465602).

Almost surely, 2^80661027 is an apocalyptic number.

80661027 is a deficient number, since it is larger than the sum of its proper divisors (27063789).

80661027 is a wasteful number, since it uses less digits than its factorization.

80661027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44197.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 80661027 is about 8981.1484232252. The cubic root of 80661027 is about 432.0704671143.

The spelling of 80661027 in words is "eighty million, six hundred sixty-one thousand, twenty-seven".