80942237 has 2 divisors, whose sum is σ = 80942238. Its totient is φ = 80942236.

The previous prime is 80942179. The next prime is 80942249. The reversal of 80942237 is 73224908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58767556 + 22174681 = 7666^2 + 4709^2 .

It is a cyclic number.

It is not a de Polignac number, because 80942237 - 2²² = 76747933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80942197 and 80942206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80942437) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40471118 + 40471119.

It is an arithmetic number, because the mean of its divisors is an integer number (40471119).

Almost surely, 2^80942237 is an apocalyptic number.

It is an amenable number.

80942237 is a deficient number, since it is larger than the sum of its proper divisors (1).

80942237 is an equidigital number, since it uses as much as digits as its factorization.

80942237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 80942237 is about 8996.7903721272. The cubic root of 80942237 is about 432.5719964343.

The spelling of 80942237 in words is "eighty million, nine hundred forty-two thousand, two hundred thirty-seven".