68637243 has 8 divisors (see below), whose sum is σ = 92405248. Its totient is φ = 45313704.

The previous prime is 68637241. The next prime is 68637263. The reversal of 68637243 is 34273686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68637243 - 2¹ = 68637241 is a prime.

It is a super-2 number, since 2×68637243² = 9422142253282098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68637241) 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 7 ways as a sum of consecutive naturals, for example, 110755 + ... + 111372.

It is an arithmetic number, because the mean of its divisors is an integer number (11550656).

Almost surely, 2^68637243 is an apocalyptic number.

68637243 is a deficient number, since it is larger than the sum of its proper divisors (23768005).

68637243 is a wasteful number, since it uses less digits than its factorization.

68637243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222233.

The product of its digits is 145152, while the sum is 39.

The square root of 68637243 is about 8284.7596826945. The cubic root of 68637243 is about 409.4365510310.

The spelling of 68637243 in words is "sixty-eight million, six hundred thirty-seven thousand, two hundred forty-three".