68352547 has 4 divisors (see below), whose sum is σ = 68373936. Its totient is φ = 68331160.

The previous prime is 68352541. The next prime is 68352553. The reversal of 68352547 is 74525386.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (68352541) and next prime (68352553).

It is a cyclic number.

It is not a de Polignac number, because 68352547 - 2³ = 68352539 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68352541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4828 + ... + 12649.

It is an arithmetic number, because the mean of its divisors is an integer number (17093484).

Almost surely, 2^68352547 is an apocalyptic number.

68352547 is a deficient number, since it is larger than the sum of its proper divisors (21389).

68352547 is a wasteful number, since it uses less digits than its factorization.

68352547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21388.

The product of its digits is 201600, while the sum is 40.

The square root of 68352547 is about 8267.5599181379. The cubic root of 68352547 is about 408.8696747031.

The spelling of 68352547 in words is "sixty-eight million, three hundred fifty-two thousand, five hundred forty-seven".