78823333 has 2 divisors, whose sum is σ = 78823334. Its totient is φ = 78823332.

The previous prime is 78823321. The next prime is 78823379. The reversal of 78823333 is 33332887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75220929 + 3602404 = 8673^2 + 1898^2 .

It is a cyclic number.

It is not a de Polignac number, because 78823333 - 2²⁵ = 45268901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78823292 and 78823301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78823313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39411666 + 39411667.

It is an arithmetic number, because the mean of its divisors is an integer number (39411667).

Almost surely, 2^78823333 is an apocalyptic number.

It is an amenable number.

78823333 is a deficient number, since it is larger than the sum of its proper divisors (1).

78823333 is an equidigital number, since it uses as much as digits as its factorization.

78823333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 37.

The square root of 78823333 is about 8878.2505596542. The cubic root of 78823333 is about 428.7639516975.

The spelling of 78823333 in words is "seventy-eight million, eight hundred twenty-three thousand, three hundred thirty-three".