80444047 has 2 divisors, whose sum is σ = 80444048. Its totient is φ = 80444046.

The previous prime is 80443997. The next prime is 80444053. The reversal of 80444047 is 74044408.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80444047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80444447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40222023 + 40222024.

It is an arithmetic number, because the mean of its divisors is an integer number (40222024).

Almost surely, 2^80444047 is an apocalyptic number.

80444047 is a deficient number, since it is larger than the sum of its proper divisors (1).

80444047 is an equidigital number, since it uses as much as digits as its factorization.

80444047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 80444047 is about 8969.0605416621. The cubic root of 80444047 is about 431.6826927326.

The spelling of 80444047 in words is "eighty million, four hundred forty-four thousand, forty-seven".