68049635 has 4 divisors (see below), whose sum is σ = 81659568. Its totient is φ = 54439704.

The previous prime is 68049629. The next prime is 68049637. The reversal of 68049635 is 53694086.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68049635 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68049592 and 68049601.

It is not an unprimeable number, because it can be changed into a prime (68049637) 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 3 ways as a sum of consecutive naturals, for example, 6804959 + ... + 6804968.

It is an arithmetic number, because the mean of its divisors is an integer number (20414892).

Almost surely, 2^68049635 is an apocalyptic number.

68049635 is a deficient number, since it is larger than the sum of its proper divisors (13609933).

68049635 is a wasteful number, since it uses less digits than its factorization.

68049635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13609932.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 68049635 is about 8249.2202661827. The cubic root of 68049635 is about 408.2647963086.

The spelling of 68049635 in words is "sixty-eight million, forty-nine thousand, six hundred thirty-five".