68737423 has 4 divisors (see below), whose sum is σ = 69864328. Its totient is φ = 67610520.

The previous prime is 68737411. The next prime is 68737429. The reversal of 68737423 is 32473786.

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 68737423 - 2⁵ = 68737391 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 (68737429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563361 + ... + 563482.

It is an arithmetic number, because the mean of its divisors is an integer number (17466082).

Almost surely, 2^68737423 is an apocalyptic number.

68737423 is a deficient number, since it is larger than the sum of its proper divisors (1126905).

68737423 is a wasteful number, since it uses less digits than its factorization.

68737423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126904.

The product of its digits is 169344, while the sum is 40.

The square root of 68737423 is about 8290.8035195631. The cubic root of 68737423 is about 409.6356529196.

The spelling of 68737423 in words is "sixty-eight million, seven hundred thirty-seven thousand, four hundred twenty-three".