80827065 has 40 divisors (see below), whose sum is σ = 158070528. Its totient is φ = 39186720.

The previous prime is 80827063. The next prime is 80827073. The reversal of 80827065 is 56072808.

It is not a de Polignac number, because 80827065 - 2¹ = 80827063 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (80827063) 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 39 ways as a sum of consecutive naturals, for example, 4617 + ... + 13526.

Almost surely, 2^80827065 is an apocalyptic number.

It is an amenable number.

80827065 is a deficient number, since it is larger than the sum of its proper divisors (77243463).

80827065 is a wasteful number, since it uses less digits than its factorization.

80827065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18171 (or 18162 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 80827065 is about 8990.3873665154. The cubic root of 80827065 is about 432.3667314121.

The spelling of 80827065 in words is "eighty million, eight hundred twenty-seven thousand, sixty-five".