68340417 has 4 divisors (see below), whose sum is σ = 91120560. Its totient is φ = 45560276.

The previous prime is 68340413. The next prime is 68340427. The reversal of 68340417 is 71404386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68340417 - 2² = 68340413 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68340413) 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, 11390067 + ... + 11390072.

It is an arithmetic number, because the mean of its divisors is an integer number (22780140).

Almost surely, 2^68340417 is an apocalyptic number.

It is an amenable number.

68340417 is a deficient number, since it is larger than the sum of its proper divisors (22780143).

68340417 is a wasteful number, since it uses less digits than its factorization.

68340417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22780142.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 68340417 is about 8266.8262955018. The cubic root of 68340417 is about 408.8454869550.

The spelling of 68340417 in words is "sixty-eight million, three hundred forty thousand, four hundred seventeen".