68837911 has 4 divisors (see below), whose sum is σ = 69235992. Its totient is φ = 68439832.

The previous prime is 68837897. The next prime is 68837917. The reversal of 68837911 is 11973886.

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

It is a cyclic number.

It is not a de Polignac number, because 68837911 - 2¹⁷ = 68706839 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 (68837917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198781 + ... + 199126.

It is an arithmetic number, because the mean of its divisors is an integer number (17308998).

Almost surely, 2^68837911 is an apocalyptic number.

68837911 is a deficient number, since it is larger than the sum of its proper divisors (398081).

68837911 is a wasteful number, since it uses less digits than its factorization.

68837911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398080.

The product of its digits is 72576, while the sum is 43.

The square root of 68837911 is about 8296.8615150550. The cubic root of 68837911 is about 409.8351726904.

The spelling of 68837911 in words is "sixty-eight million, eight hundred thirty-seven thousand, nine hundred eleven".