80266985 has 8 divisors (see below), whose sum is σ = 96405000. Its totient is φ = 64157184.

The previous prime is 80266969. The next prime is 80267009. The reversal of 80266985 is 58966208.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1607824 + 78659161 = 1268^2 + 8869^2 .

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 80266985 - 2⁴ = 80266969 is a prime.

It is an unprimeable number.

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, 182 + ... + 12671.

It is an arithmetic number, because the mean of its divisors is an integer number (12050625).

Almost surely, 2^80266985 is an apocalyptic number.

It is an amenable number.

80266985 is a deficient number, since it is larger than the sum of its proper divisors (16138015).

80266985 is a wasteful number, since it uses less digits than its factorization.

80266985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14107.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 80266985 is about 8959.1843936823. The cubic root of 80266985 is about 431.3657405509.

The spelling of 80266985 in words is "eighty million, two hundred sixty-six thousand, nine hundred eighty-five".