78563627 has 2 divisors, whose sum is σ = 78563628. Its totient is φ = 78563626.

The previous prime is 78563621. The next prime is 78563629. The reversal of 78563627 is 72636587.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78563627 - 2⁸ = 78563371 is a prime.

Together with 78563629, 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 (78563621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39281813 + 39281814.

It is an arithmetic number, because the mean of its divisors is an integer number (39281814).

Almost surely, 2^78563627 is an apocalyptic number.

78563627 is a deficient number, since it is larger than the sum of its proper divisors (1).

78563627 is an equidigital number, since it uses as much as digits as its factorization.

78563627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 44.

The square root of 78563627 is about 8863.6125253759. The cubic root of 78563627 is about 428.2925384529.

The spelling of 78563627 in words is "seventy-eight million, five hundred sixty-three thousand, six hundred twenty-seven".