68152823 has 4 divisors (see below), whose sum is σ = 68173248. Its totient is φ = 68132400.

The previous prime is 68152817. The next prime is 68152837. The reversal of 68152823 is 32825186.

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

It is a cyclic number.

It is not a de Polignac number, because 68152823 - 2⁶ = 68152759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68152723) 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, 3911 + ... + 12312.

It is an arithmetic number, because the mean of its divisors is an integer number (17043312).

Almost surely, 2^68152823 is an apocalyptic number.

68152823 is a deficient number, since it is larger than the sum of its proper divisors (20425).

68152823 is a wasteful number, since it uses less digits than its factorization.

68152823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20424.

The product of its digits is 23040, while the sum is 35.

The square root of 68152823 is about 8255.4723062948. The cubic root of 68152823 is about 408.4710514042.

The spelling of 68152823 in words is "sixty-eight million, one hundred fifty-two thousand, eight hundred twenty-three".