80609311 has 2 divisors, whose sum is σ = 80609312. Its totient is φ = 80609310.

The previous prime is 80609279. The next prime is 80609317. The reversal of 80609311 is 11390608.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80609311 - 2⁵ = 80609279 is a prime.

It is a super-2 number, since 2×80609311² = 12995722039789442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80609311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80609317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40304655 + 40304656.

It is an arithmetic number, because the mean of its divisors is an integer number (40304656).

Almost surely, 2^80609311 is an apocalyptic number.

80609311 is a deficient number, since it is larger than the sum of its proper divisors (1).

80609311 is an equidigital number, since it uses as much as digits as its factorization.

80609311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 80609311 is about 8978.2688197670. The cubic root of 80609311 is about 431.9781063865.

Adding to 80609311 its reverse (11390608), we get a palindrome (91999919).

It can be divided in two parts, 8060 and 9311, that added together give a palindrome (17371).

The spelling of 80609311 in words is "eighty million, six hundred nine thousand, three hundred eleven".