68775237 has 20 divisors (see below), whose sum is σ = 102987456. Its totient is φ = 45739080.

The previous prime is 68775229. The next prime is 68775247. The reversal of 68775237 is 73257786.

It is not a de Polignac number, because 68775237 - 2³ = 68775229 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 68775192 and 68775201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68775227) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 45508 + ... + 46994.

Almost surely, 2^68775237 is an apocalyptic number.

It is an amenable number.

68775237 is a deficient number, since it is larger than the sum of its proper divisors (34212219).

68775237 is a wasteful number, since it uses less digits than its factorization.

68775237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070 (or 2061 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 68775237 is about 8293.0836846133. The cubic root of 68775237 is about 409.7107557399.

The spelling of 68775237 in words is "sixty-eight million, seven hundred seventy-five thousand, two hundred thirty-seven".