80591479 has 2 divisors, whose sum is σ = 80591480. Its totient is φ = 80591478.

The previous prime is 80591477. The next prime is 80591501. The reversal of 80591479 is 97419508.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80591479 - 2¹ = 80591477 is a prime.

Together with 80591477, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80591473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40295739 + 40295740.

It is an arithmetic number, because the mean of its divisors is an integer number (40295740).

Almost surely, 2^80591479 is an apocalyptic number.

80591479 is a deficient number, since it is larger than the sum of its proper divisors (1).

80591479 is an equidigital number, since it uses as much as digits as its factorization.

80591479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 80591479 is about 8977.2757003447. The cubic root of 80591479 is about 431.9462506716.

The spelling of 80591479 in words is "eighty million, five hundred ninety-one thousand, four hundred seventy-nine".