80351939 has 2 divisors, whose sum is σ = 80351940. Its totient is φ = 80351938.

The previous prime is 80351933. The next prime is 80351941. The reversal of 80351939 is 93915308.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80351939 - 2⁸ = 80351683 is a prime.

Together with 80351941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80351933) 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, 40175969 + 40175970.

It is an arithmetic number, because the mean of its divisors is an integer number (40175970).

Almost surely, 2^80351939 is an apocalyptic number.

80351939 is a deficient number, since it is larger than the sum of its proper divisors (1).

80351939 is an equidigital number, since it uses as much as digits as its factorization.

80351939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 80351939 is about 8963.9243080249. The cubic root of 80351939 is about 431.5178716918.

The spelling of 80351939 in words is "eighty million, three hundred fifty-one thousand, nine hundred thirty-nine".