80985527 has 4 divisors (see below), whose sum is σ = 92554896. Its totient is φ = 69416160.

The previous prime is 80985517. The next prime is 80985529. The reversal of 80985527 is 72558908.

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 80985527 - 2⁸ = 80985271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80985529) 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, 5784674 + ... + 5784687.

It is an arithmetic number, because the mean of its divisors is an integer number (23138724).

Almost surely, 2^80985527 is an apocalyptic number.

80985527 is a deficient number, since it is larger than the sum of its proper divisors (11569369).

80985527 is a wasteful number, since it uses less digits than its factorization.

80985527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11569368.

The product of its (nonzero) digits is 201600, while the sum is 44.

The square root of 80985527 is about 8999.1959085243. The cubic root of 80985527 is about 432.6490995843.

The spelling of 80985527 in words is "eighty million, nine hundred eighty-five thousand, five hundred twenty-seven".