68970823 has 4 divisors (see below), whose sum is σ = 70139880. Its totient is φ = 67801768.

The previous prime is 68970821. The next prime is 68970829. The reversal of 68970823 is 32807986.

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 68970823 - 2¹ = 68970821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68970823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68970821) 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, 584440 + ... + 584557.

It is an arithmetic number, because the mean of its divisors is an integer number (17534970).

Almost surely, 2^68970823 is an apocalyptic number.

68970823 is a deficient number, since it is larger than the sum of its proper divisors (1169057).

68970823 is a wasteful number, since it uses less digits than its factorization.

68970823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169056.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 68970823 is about 8304.8674282014. The cubic root of 68970823 is about 410.0987725543.

The spelling of 68970823 in words is "sixty-eight million, nine hundred seventy thousand, eight hundred twenty-three".