80667823 has 2 divisors, whose sum is σ = 80667824. Its totient is φ = 80667822.

The previous prime is 80667793. The next prime is 80667827. The reversal of 80667823 is 32876608.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80667823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80667827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40333911 + 40333912.

It is an arithmetic number, because the mean of its divisors is an integer number (40333912).

Almost surely, 2^80667823 is an apocalyptic number.

80667823 is a deficient number, since it is larger than the sum of its proper divisors (1).

80667823 is an equidigital number, since it uses as much as digits as its factorization.

80667823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 80667823 is about 8981.5267633070. The cubic root of 80667823 is about 432.0826013033.

The spelling of 80667823 in words is "eighty million, six hundred sixty-seven thousand, eight hundred twenty-three".