80369831 has 2 divisors, whose sum is σ = 80369832. Its totient is φ = 80369830.

The previous prime is 80369827. The next prime is 80369833. The reversal of 80369831 is 13896308.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80369831 - 2² = 80369827 is a prime.

It is a super-2 number, since 2×80369831² = 12918619469937122, which contains 22 as substring.

Together with 80369833, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80369833) 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, 40184915 + 40184916.

It is an arithmetic number, because the mean of its divisors is an integer number (40184916).

Almost surely, 2^80369831 is an apocalyptic number.

80369831 is a deficient number, since it is larger than the sum of its proper divisors (1).

80369831 is an equidigital number, since it uses as much as digits as its factorization.

80369831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 80369831 is about 8964.9222528698. The cubic root of 80369831 is about 431.5498980701.

The spelling of 80369831 in words is "eighty million, three hundred sixty-nine thousand, eight hundred thirty-one".