80446823 has 2 divisors, whose sum is σ = 80446824. Its totient is φ = 80446822.

The previous prime is 80446819. The next prime is 80446831. The reversal of 80446823 is 32864408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80446823 - 2² = 80446819 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80446423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40223411 + 40223412.

It is an arithmetic number, because the mean of its divisors is an integer number (40223412).

Almost surely, 2^80446823 is an apocalyptic number.

80446823 is a deficient number, since it is larger than the sum of its proper divisors (1).

80446823 is an equidigital number, since it uses as much as digits as its factorization.

80446823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 80446823 is about 8969.2152945506. The cubic root of 80446823 is about 431.6876582435.

The spelling of 80446823 in words is "eighty million, four hundred forty-six thousand, eight hundred twenty-three".