80528867 has 4 divisors (see below), whose sum is σ = 80721480. Its totient is φ = 80336256.

The previous prime is 80528849. The next prime is 80528893. The reversal of 80528867 is 76882508.

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 80528867 - 2⁸ = 80528611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80528837) 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, 95678 + ... + 96515.

It is an arithmetic number, because the mean of its divisors is an integer number (20180370).

Almost surely, 2^80528867 is an apocalyptic number.

80528867 is a deficient number, since it is larger than the sum of its proper divisors (192613).

80528867 is a wasteful number, since it uses less digits than its factorization.

80528867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192612.

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 80528867 is about 8973.7877732873. The cubic root of 80528867 is about 431.8343611525.

The spelling of 80528867 in words is "eighty million, five hundred twenty-eight thousand, eight hundred sixty-seven".