68749238 has 4 divisors (see below), whose sum is σ = 103123860. Its totient is φ = 34374618.

The previous prime is 68749237. The next prime is 68749279. The reversal of 68749238 is 83294786.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 68749192 and 68749201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68749237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17187308 + ... + 17187311.

It is an arithmetic number, because the mean of its divisors is an integer number (25780965).

Almost surely, 2^68749238 is an apocalyptic number.

68749238 is a deficient number, since it is larger than the sum of its proper divisors (34374622).

68749238 is a wasteful number, since it uses less digits than its factorization.

68749238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34374621.

The product of its digits is 580608, while the sum is 47.

The square root of 68749238 is about 8291.5160254323. The cubic root of 68749238 is about 409.6591217849.

The spelling of 68749238 in words is "sixty-eight million, seven hundred forty-nine thousand, two hundred thirty-eight".