68912423 has 4 divisors (see below), whose sum is σ = 68937960. Its totient is φ = 68886888.

The previous prime is 68912377. The next prime is 68912429. The reversal of 68912423 is 32421986.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32421986 = 2 ⋅16210993.

It is a cyclic number.

It is not a de Polignac number, because 68912423 - 2¹⁰ = 68911399 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 (68912429) 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, 8168 + ... + 14301.

It is an arithmetic number, because the mean of its divisors is an integer number (17234490).

Almost surely, 2^68912423 is an apocalyptic number.

68912423 is a deficient number, since it is larger than the sum of its proper divisors (25537).

68912423 is a wasteful number, since it uses less digits than its factorization.

68912423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25536.

The product of its digits is 20736, while the sum is 35.

The square root of 68912423 is about 8301.3506732338. The cubic root of 68912423 is about 409.9829915609.

The spelling of 68912423 in words is "sixty-eight million, nine hundred twelve thousand, four hundred twenty-three".