68635538 has 8 divisors (see below), whose sum is σ = 102997632. Its totient is φ = 34302996.

The previous prime is 68635531. The next prime is 68635571. The reversal of 68635538 is 83553686.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68635531) 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, 170 + ... + 11717.

It is an arithmetic number, because the mean of its divisors is an integer number (12874704).

Almost surely, 2^68635538 is an apocalyptic number.

68635538 is a deficient number, since it is larger than the sum of its proper divisors (34362094).

68635538 is a wasteful number, since it uses less digits than its factorization.

68635538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14776.

The product of its digits is 518400, while the sum is 44.

The square root of 68635538 is about 8284.6567822693. The cubic root of 68635538 is about 409.4331607671.

The spelling of 68635538 in words is "sixty-eight million, six hundred thirty-five thousand, five hundred thirty-eight".