80725871 has 2 divisors, whose sum is σ = 80725872. Its totient is φ = 80725870.

The previous prime is 80725859. The next prime is 80725901. The reversal of 80725871 is 17852708.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80725871 - 2⁶ = 80725807 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80725171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40362935 + 40362936.

It is an arithmetic number, because the mean of its divisors is an integer number (40362936).

Almost surely, 2^80725871 is an apocalyptic number.

80725871 is a deficient number, since it is larger than the sum of its proper divisors (1).

80725871 is an equidigital number, since it uses as much as digits as its factorization.

80725871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 80725871 is about 8984.7577040230. The cubic root of 80725871 is about 432.1862176571.

The spelling of 80725871 in words is "eighty million, seven hundred twenty-five thousand, eight hundred seventy-one".