78760571 has 2 divisors, whose sum is σ = 78760572. Its totient is φ = 78760570.

The previous prime is 78760559. The next prime is 78760573. The reversal of 78760571 is 17506787.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78760571 - 2¹⁰ = 78759547 is a prime.

Together with 78760573, 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 (78760573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39380285 + 39380286.

It is an arithmetic number, because the mean of its divisors is an integer number (39380286).

Almost surely, 2^78760571 is an apocalyptic number.

78760571 is a deficient number, since it is larger than the sum of its proper divisors (1).

78760571 is an equidigital number, since it uses as much as digits as its factorization.

78760571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 78760571 is about 8874.7152630380. The cubic root of 78760571 is about 428.6501223378.

The spelling of 78760571 in words is "seventy-eight million, seven hundred sixty thousand, five hundred seventy-one".