80544427 has 2 divisors, whose sum is σ = 80544428. Its totient is φ = 80544426.

The previous prime is 80544421. The next prime is 80544437. The reversal of 80544427 is 72444508.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80544427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80544392 and 80544401.

It is not a weakly prime, because it can be changed into another prime (80544421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40272213 + 40272214.

It is an arithmetic number, because the mean of its divisors is an integer number (40272214).

Almost surely, 2^80544427 is an apocalyptic number.

80544427 is a deficient number, since it is larger than the sum of its proper divisors (1).

80544427 is an equidigital number, since it uses as much as digits as its factorization.

80544427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 80544427 is about 8974.6547008785. The cubic root of 80544427 is about 431.8621727526.

The spelling of 80544427 in words is "eighty million, five hundred forty-four thousand, four hundred twenty-seven".