68856147 has 6 divisors (see below), whose sum is σ = 99458892. Its totient is φ = 45904092.

The previous prime is 68856143. The next prime is 68856167. The reversal of 68856147 is 74165886.

It is a happy number.

68856147 is a `hidden beast` number, since 6 + 88 + 561 + 4 + 7 = 666.

It is not a de Polignac number, because 68856147 - 2² = 68856143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68856143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3825333 + ... + 3825350.

It is an arithmetic number, because the mean of its divisors is an integer number (16576482).

Almost surely, 2^68856147 is an apocalyptic number.

68856147 is a deficient number, since it is larger than the sum of its proper divisors (30602745).

68856147 is a wasteful number, since it uses less digits than its factorization.

68856147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650689 (or 7650686 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 68856147 is about 8297.9604120531. The cubic root of 68856147 is about 409.8713596027.

The spelling of 68856147 in words is "sixty-eight million, eight hundred fifty-six thousand, one hundred forty-seven".