68671633 has 2 divisors, whose sum is σ = 68671634. Its totient is φ = 68671632.

The previous prime is 68671621. The next prime is 68671657. The reversal of 68671633 is 33617686.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46881409 + 21790224 = 6847^2 + 4668^2 .

It is a cyclic number.

It is not a de Polignac number, because 68671633 - 2²¹ = 66574481 is a prime.

It is not a weakly prime, because it can be changed into another prime (68671663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34335816 + 34335817.

It is an arithmetic number, because the mean of its divisors is an integer number (34335817).

Almost surely, 2^68671633 is an apocalyptic number.

It is an amenable number.

68671633 is a deficient number, since it is larger than the sum of its proper divisors (1).

68671633 is an equidigital number, since it uses as much as digits as its factorization.

68671633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 68671633 is about 8286.8349205230. The cubic root of 68671633 is about 409.5049209684.

The spelling of 68671633 in words is "sixty-eight million, six hundred seventy-one thousand, six hundred thirty-three".