68704129 has 8 divisors (see below), whose sum is σ = 74555712. Its totient is φ = 62933520.

The previous prime is 68704127. The next prime is 68704147. The reversal of 68704129 is 92140786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68704129 - 2¹ = 68704127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68704121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18469 + ... + 21874.

It is an arithmetic number, because the mean of its divisors is an integer number (9319464).

Almost surely, 2^68704129 is an apocalyptic number.

It is an amenable number.

68704129 is a deficient number, since it is larger than the sum of its proper divisors (5851583).

68704129 is a wasteful number, since it uses less digits than its factorization.

68704129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40487.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 68704129 is about 8288.7953889573. The cubic root of 68704129 is about 409.5695045179.

The spelling of 68704129 in words is "sixty-eight million, seven hundred four thousand, one hundred twenty-nine".