80573957 has 2 divisors, whose sum is σ = 80573958. Its totient is φ = 80573956.

The previous prime is 80573891. The next prime is 80573971. The reversal of 80573957 is 75937508.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63218401 + 17355556 = 7951^2 + 4166^2 .

It is a cyclic number.

It is not a de Polignac number, because 80573957 - 2¹⁴ = 80557573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80573057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40286978 + 40286979.

It is an arithmetic number, because the mean of its divisors is an integer number (40286979).

Almost surely, 2^80573957 is an apocalyptic number.

It is an amenable number.

80573957 is a deficient number, since it is larger than the sum of its proper divisors (1).

80573957 is an equidigital number, since it uses as much as digits as its factorization.

80573957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 80573957 is about 8976.2997387565. The cubic root of 80573957 is about 431.9149441742.

The spelling of 80573957 in words is "eighty million, five hundred seventy-three thousand, nine hundred fifty-seven".