68740629 has 16 divisors (see below), whose sum is σ = 97448832. Its totient is φ = 43005248.

The previous prime is 68740627. The next prime is 68740687. The reversal of 68740629 is 92604786.

It is a cyclic number.

It is not a de Polignac number, because 68740629 - 2¹ = 68740627 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68740627) 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 in 15 ways as a sum of consecutive naturals, for example, 5742 + ... + 13055.

It is an arithmetic number, because the mean of its divisors is an integer number (6090552).

Almost surely, 2^68740629 is an apocalyptic number.

68740629 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

68740629 is a deficient number, since it is larger than the sum of its proper divisors (28708203).

68740629 is a wasteful number, since it uses less digits than its factorization.

68740629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18876.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 68740629 is about 8290.9968640689. The cubic root of 68740629 is about 409.6420214615.

The spelling of 68740629 in words is "sixty-eight million, seven hundred forty thousand, six hundred twenty-nine".