68629571 has 2 divisors, whose sum is σ = 68629572. Its totient is φ = 68629570.

The previous prime is 68629559. The next prime is 68629579. The reversal of 68629571 is 17592686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68629571 - 2¹⁴ = 68613187 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68629579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34314785 + 34314786.

It is an arithmetic number, because the mean of its divisors is an integer number (34314786).

Almost surely, 2^68629571 is an apocalyptic number.

68629571 is a deficient number, since it is larger than the sum of its proper divisors (1).

68629571 is an equidigital number, since it uses as much as digits as its factorization.

68629571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 68629571 is about 8284.2966508932. The cubic root of 68629571 is about 409.4212953956.

The spelling of 68629571 in words is "sixty-eight million, six hundred twenty-nine thousand, five hundred seventy-one".