76868447 has 2 divisors, whose sum is σ = 76868448. Its totient is φ = 76868446.

The previous prime is 76868411. The next prime is 76868503. The reversal of 76868447 is 74486867.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76868447 - 2⁶ = 76868383 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 76868395 and 76868404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76868947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38434223 + 38434224.

It is an arithmetic number, because the mean of its divisors is an integer number (38434224).

Almost surely, 2^76868447 is an apocalyptic number.

76868447 is a deficient number, since it is larger than the sum of its proper divisors (1).

76868447 is an equidigital number, since it uses as much as digits as its factorization.

76868447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1806336, while the sum is 50.

The square root of 76868447 is about 8767.4652551350. The cubic root of 76868447 is about 425.1896675923.

The spelling of 76868447 in words is "seventy-six million, eight hundred sixty-eight thousand, four hundred forty-seven".