68064091 has 8 divisors (see below), whose sum is σ = 69070320. Its totient is φ = 67064928.

The previous prime is 68064083. The next prime is 68064103. The reversal of 68064091 is 19046086.

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 68064091 - 2³ = 68064083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68064071) 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 7 ways as a sum of consecutive naturals, for example, 19465 + ... + 22693.

It is an arithmetic number, because the mean of its divisors is an integer number (8633790).

Almost surely, 2^68064091 is an apocalyptic number.

68064091 is a deficient number, since it is larger than the sum of its proper divisors (1006229).

68064091 is a wasteful number, since it uses less digits than its factorization.

68064091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3533.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 68064091 is about 8250.0964236789. The cubic root of 68064091 is about 408.2937039239.

The spelling of 68064091 in words is "sixty-eight million, sixty-four thousand, ninety-one".