80047823 has 2 divisors, whose sum is σ = 80047824. Its totient is φ = 80047822.

The previous prime is 80047819. The next prime is 80047831. The reversal of 80047823 is 32874008.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80047823 - 2² = 80047819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80047823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80047813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40023911 + 40023912.

It is an arithmetic number, because the mean of its divisors is an integer number (40023912).

Almost surely, 2^80047823 is an apocalyptic number.

80047823 is a deficient number, since it is larger than the sum of its proper divisors (1).

80047823 is an equidigital number, since it uses as much as digits as its factorization.

80047823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 80047823 is about 8946.9448975614. The cubic root of 80047823 is about 430.9727805119.

The spelling of 80047823 in words is "eighty million, forty-seven thousand, eight hundred twenty-three".