67808023 has 4 divisors (see below), whose sum is σ = 68408208. Its totient is φ = 67207840.

The previous prime is 67808009. The next prime is 67808047. The reversal of 67808023 is 32080876.

It is a happy number.

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 67808023 - 2¹⁷ = 67676951 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 67808023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67808063) 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, 299923 + ... + 300148.

It is an arithmetic number, because the mean of its divisors is an integer number (17102052).

Almost surely, 2^67808023 is an apocalyptic number.

67808023 is a deficient number, since it is larger than the sum of its proper divisors (600185).

67808023 is a wasteful number, since it uses less digits than its factorization.

67808023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600184.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 67808023 is about 8234.5627084867. The cubic root of 67808023 is about 407.7810383963.

Adding to 67808023 its reverse (32080876), we get a palindrome (99888899).

The spelling of 67808023 in words is "sixty-seven million, eight hundred eight thousand, twenty-three".