68437423 has 4 divisors (see below), whose sum is σ = 69101968. Its totient is φ = 67772880.

The previous prime is 68437417. The next prime is 68437471. The reversal of 68437423 is 32473486.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32473486 = 2 ⋅16236743.

It is a cyclic number.

It is not a de Polignac number, because 68437423 - 2⁹ = 68436911 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 (68437403) 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, 332118 + ... + 332323.

It is an arithmetic number, because the mean of its divisors is an integer number (17275492).

Almost surely, 2^68437423 is an apocalyptic number.

68437423 is a deficient number, since it is larger than the sum of its proper divisors (664545).

68437423 is a wasteful number, since it uses less digits than its factorization.

68437423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664544.

The product of its digits is 96768, while the sum is 37.

The square root of 68437423 is about 8272.6914000221. The cubic root of 68437423 is about 409.0388411293.

The spelling of 68437423 in words is "sixty-eight million, four hundred thirty-seven thousand, four hundred twenty-three".