78116323 has 2 divisors, whose sum is σ = 78116324. Its totient is φ = 78116322.

The previous prime is 78116299. The next prime is 78116327. The reversal of 78116323 is 32361187.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78116323 - 2⁹ = 78115811 is a prime.

It is a super-2 number, since 2×78116323² = 12204319838080658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78116327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39058161 + 39058162.

It is an arithmetic number, because the mean of its divisors is an integer number (39058162).

Almost surely, 2^78116323 is an apocalyptic number.

78116323 is a deficient number, since it is larger than the sum of its proper divisors (1).

78116323 is an equidigital number, since it uses as much as digits as its factorization.

78116323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 78116323 is about 8838.3439059589. The cubic root of 78116323 is about 427.4781594578.

The spelling of 78116323 in words is "seventy-eight million, one hundred sixteen thousand, three hundred twenty-three".