80928479 has 2 divisors, whose sum is σ = 80928480. Its totient is φ = 80928478.

The previous prime is 80928461. The next prime is 80928481. The reversal of 80928479 is 97482908.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80928479 - 2⁸ = 80928223 is a prime.

Together with 80928481, 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 (80928499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40464239 + 40464240.

It is an arithmetic number, because the mean of its divisors is an integer number (40464240).

Almost surely, 2^80928479 is an apocalyptic number.

80928479 is a deficient number, since it is larger than the sum of its proper divisors (1).

80928479 is an equidigital number, since it uses as much as digits as its factorization.

80928479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 80928479 is about 8996.0257336226. The cubic root of 80928479 is about 432.5474865164.

The spelling of 80928479 in words is "eighty million, nine hundred twenty-eight thousand, four hundred seventy-nine".