80544437 has 2 divisors, whose sum is σ = 80544438. Its totient is φ = 80544436.

The previous prime is 80544427. The next prime is 80544463. The reversal of 80544437 is 73444508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72012196 + 8532241 = 8486^2 + 2921^2 .

It is a cyclic number.

It is not a de Polignac number, because 80544437 - 2⁴ = 80544421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80544397 and 80544406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80544407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40272218 + 40272219.

It is an arithmetic number, because the mean of its divisors is an integer number (40272219).

Almost surely, 2^80544437 is an apocalyptic number.

It is an amenable number.

80544437 is a deficient number, since it is larger than the sum of its proper divisors (1).

80544437 is an equidigital number, since it uses as much as digits as its factorization.

80544437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 80544437 is about 8974.6552580030. The cubic root of 80544437 is about 431.8621906252.

The spelling of 80544437 in words is "eighty million, five hundred forty-four thousand, four hundred thirty-seven".