68319629 has 16 divisors (see below), whose sum is σ = 81177600. Its totient is φ = 56263680.

The previous prime is 68319613. The next prime is 68319661. The reversal of 68319629 is 92691386.

It is a cyclic number.

It is not a de Polignac number, because 68319629 - 2⁴ = 68319613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68319629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68319829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31277 + ... + 33389.

It is an arithmetic number, because the mean of its divisors is an integer number (5073600).

Almost surely, 2^68319629 is an apocalyptic number.

It is an amenable number.

68319629 is a deficient number, since it is larger than the sum of its proper divisors (12857971).

68319629 is a wasteful number, since it uses less digits than its factorization.

68319629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300.

The product of its digits is 139968, while the sum is 44.

The square root of 68319629 is about 8265.5688854428. The cubic root of 68319629 is about 408.8040281216.

The spelling of 68319629 in words is "sixty-eight million, three hundred nineteen thousand, six hundred twenty-nine".