68223091 has 8 divisors (see below), whose sum is σ = 76038480. Its totient is φ = 60830208.

The previous prime is 68223061. The next prime is 68223101. The reversal of 68223091 is 19032286.

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 68223091 - 2⁹ = 68222579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68223061) 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, 105286 + ... + 105931.

It is an arithmetic number, because the mean of its divisors is an integer number (9504810).

Almost surely, 2^68223091 is an apocalyptic number.

68223091 is a deficient number, since it is larger than the sum of its proper divisors (7815389).

68223091 is a wasteful number, since it uses less digits than its factorization.

68223091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211253.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 68223091 is about 8259.7270536017. The cubic root of 68223091 is about 408.6113859435.

The spelling of 68223091 in words is "sixty-eight million, two hundred twenty-three thousand, ninety-one".