80839237 has 2 divisors, whose sum is σ = 80839238. Its totient is φ = 80839236.

The previous prime is 80839217. The next prime is 80839271. The reversal of 80839237 is 73293808.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80838081 + 1156 = 8991^2 + 34^2 .

It is a cyclic number.

It is not a de Polignac number, because 80839237 - 2¹⁵ = 80806469 is a prime.

It is a super-4 number, since 4×80839237⁴ (a number of 33 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80839237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80839217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40419618 + 40419619.

It is an arithmetic number, because the mean of its divisors is an integer number (40419619).

Almost surely, 2^80839237 is an apocalyptic number.

It is an amenable number.

80839237 is a deficient number, since it is larger than the sum of its proper divisors (1).

80839237 is an equidigital number, since it uses as much as digits as its factorization.

80839237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 80839237 is about 8991.0642862789. The cubic root of 80839237 is about 432.3884341412.

The spelling of 80839237 in words is "eighty million, eight hundred thirty-nine thousand, two hundred thirty-seven".