68808237 has 4 divisors (see below), whose sum is σ = 91744320. Its totient is φ = 45872156.

The previous prime is 68808227. The next prime is 68808239. The reversal of 68808237 is 73280886.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68808237 - 2⁴ = 68808221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68808239) 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, 11468037 + ... + 11468042.

It is an arithmetic number, because the mean of its divisors is an integer number (22936080).

Almost surely, 2^68808237 is an apocalyptic number.

It is an amenable number.

68808237 is a deficient number, since it is larger than the sum of its proper divisors (22936083).

68808237 is a wasteful number, since it uses less digits than its factorization.

68808237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22936082.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 68808237 is about 8295.0730557362. The cubic root of 68808237 is about 409.7762749279.

The spelling of 68808237 in words is "sixty-eight million, eight hundred eight thousand, two hundred thirty-seven".