68352691 has 8 divisors (see below), whose sum is σ = 74635200. Its totient is φ = 62081640.

The previous prime is 68352689. The next prime is 68352703. The reversal of 68352691 is 19625386.

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

It is a cyclic number.

It is not a de Polignac number, because 68352691 - 2¹ = 68352689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68352611) 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, 13920 + ... + 18178.

It is an arithmetic number, because the mean of its divisors is an integer number (9329400).

Almost surely, 2^68352691 is an apocalyptic number.

68352691 is a deficient number, since it is larger than the sum of its proper divisors (6282509).

68352691 is a wasteful number, since it uses less digits than its factorization.

68352691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5729.

The product of its digits is 77760, while the sum is 40.

The square root of 68352691 is about 8267.5686268697. The cubic root of 68352691 is about 408.8699618281.

The spelling of 68352691 in words is "sixty-eight million, three hundred fifty-two thousand, six hundred ninety-one".