68824847 has 16 divisors (see below), whose sum is σ = 87001152. Its totient is φ = 52980480.

The previous prime is 68824843. The next prime is 68824849. The reversal of 68824847 is 74842886.

It is a happy number.

It is not a de Polignac number, because 68824847 - 2² = 68824843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68824843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6854 + ... + 13587.

It is an arithmetic number, because the mean of its divisors is an integer number (5437572).

Almost surely, 2^68824847 is an apocalyptic number.

68824847 is a deficient number, since it is larger than the sum of its proper divisors (18176305).

68824847 is a wasteful number, since it uses less digits than its factorization.

68824847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20498.

The product of its digits is 688128, while the sum is 47.

The square root of 68824847 is about 8296.0741920501. The cubic root of 68824847 is about 409.8092449938.

The spelling of 68824847 in words is "sixty-eight million, eight hundred twenty-four thousand, eight hundred forty-seven".