80437061 has 2 divisors, whose sum is σ = 80437062. Its totient is φ = 80437060.

The previous prime is 80437057. The next prime is 80437067. The reversal of 80437061 is 16073408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68145025 + 12292036 = 8255^2 + 3506^2 .

It is a cyclic number.

It is not a de Polignac number, because 80437061 - 2² = 80437057 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80437067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40218530 + 40218531.

It is an arithmetic number, because the mean of its divisors is an integer number (40218531).

Almost surely, 2^80437061 is an apocalyptic number.

It is an amenable number.

80437061 is a deficient number, since it is larger than the sum of its proper divisors (1).

80437061 is an equidigital number, since it uses as much as digits as its factorization.

80437061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 80437061 is about 8968.6710832765. The cubic root of 80437061 is about 431.6701961684.

The spelling of 80437061 in words is "eighty million, four hundred thirty-seven thousand, sixty-one".