68628423 has 4 divisors (see below), whose sum is σ = 91504568. Its totient is φ = 45752280.

The previous prime is 68628419. The next prime is 68628433. The reversal of 68628423 is 32482686.

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

It is not a de Polignac number, because 68628423 - 2² = 68628419 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 (68628433) 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, 11438068 + ... + 11438073.

It is an arithmetic number, because the mean of its divisors is an integer number (22876142).

Almost surely, 2^68628423 is an apocalyptic number.

68628423 is a deficient number, since it is larger than the sum of its proper divisors (22876145).

68628423 is a wasteful number, since it uses less digits than its factorization.

68628423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22876144.

The product of its digits is 110592, while the sum is 39.

The square root of 68628423 is about 8284.2273628867. The cubic root of 68628423 is about 409.4190125203.

The spelling of 68628423 in words is "sixty-eight million, six hundred twenty-eight thousand, four hundred twenty-three".