78324163 has 2 divisors, whose sum is σ = 78324164. Its totient is φ = 78324162.

The previous prime is 78324143. The next prime is 78324167. The reversal of 78324163 is 36142387.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78324163 - 2¹⁷ = 78193091 is a prime.

It is a super-2 number, since 2×78324163² = 12269349019301138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78324167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39162081 + 39162082.

It is an arithmetic number, because the mean of its divisors is an integer number (39162082).

Almost surely, 2^78324163 is an apocalyptic number.

78324163 is a deficient number, since it is larger than the sum of its proper divisors (1).

78324163 is an equidigital number, since it uses as much as digits as its factorization.

78324163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 78324163 is about 8850.0939543035. The cubic root of 78324163 is about 427.8569466162.

It can be divided in two parts, 78324 and 163, that added together give a palindrome (78487).

The spelling of 78324163 in words is "seventy-eight million, three hundred twenty-four thousand, one hundred sixty-three".