68417929 has 4 divisors (see below), whose sum is σ = 68585620. Its totient is φ = 68250648.

The previous prime is 68417891. The next prime is 68417941. The reversal of 68417929 is 92971486.

The cubic root of 68417929 is 409.

It is a perfect power (a cube), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 55651600 + 12766329 = 7460^2 + 3573^2 .

It is not a de Polignac number, because 68417929 - 2¹⁷ = 68286857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68417959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167077 + ... + 167485.

It is an arithmetic number, because the mean of its divisors is an integer number (17146405).

Almost surely, 2^68417929 is an apocalyptic number.

It is an amenable number.

68417929 is a deficient number, since it is larger than the sum of its proper divisors (167691).

68417929 is an frugal number, since it uses more digits than its factorization.

68417929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 409 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 68417929 is about 8271.5131022081.

The spelling of 68417929 in words is "sixty-eight million, four hundred seventeen thousand, nine hundred twenty-nine".