68884547 has 2 divisors, whose sum is σ = 68884548. Its totient is φ = 68884546.

The previous prime is 68884531. The next prime is 68884549. The reversal of 68884547 is 74548886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68884547 - 2⁴ = 68884531 is a prime.

Together with 68884549, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68884495 and 68884504.

It is not a weakly prime, because it can be changed into another prime (68884549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34442273 + 34442274.

It is an arithmetic number, because the mean of its divisors is an integer number (34442274).

Almost surely, 2^68884547 is an apocalyptic number.

68884547 is a deficient number, since it is larger than the sum of its proper divisors (1).

68884547 is an equidigital number, since it uses as much as digits as its factorization.

68884547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1720320, while the sum is 50.

The square root of 68884547 is about 8299.6714995233. The cubic root of 68884547 is about 409.9277028977.

The spelling of 68884547 in words is "sixty-eight million, eight hundred eighty-four thousand, five hundred forty-seven".