78227627 has 2 divisors, whose sum is σ = 78227628. Its totient is φ = 78227626.

The previous prime is 78227609. The next prime is 78227641. The reversal of 78227627 is 72672287.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78227627 - 2⁶ = 78227563 is a prime.

It is a super-2 number, since 2×78227627² = 12239123252102258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78227647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39113813 + 39113814.

It is an arithmetic number, because the mean of its divisors is an integer number (39113814).

Almost surely, 2^78227627 is an apocalyptic number.

78227627 is a deficient number, since it is larger than the sum of its proper divisors (1).

78227627 is an equidigital number, since it uses as much as digits as its factorization.

78227627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131712, while the sum is 41.

The square root of 78227627 is about 8844.6383193435. The cubic root of 78227627 is about 427.6810937784.

The spelling of 78227627 in words is "seventy-eight million, two hundred twenty-seven thousand, six hundred twenty-seven".