68834621 has 4 divisors (see below), whose sum is σ = 68955744. Its totient is φ = 68713500.

The previous prime is 68834611. The next prime is 68834627. The reversal of 68834621 is 12643886.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68834621 - 2¹⁴ = 68818237 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 (68834627) 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, 59705 + ... + 60846.

It is an arithmetic number, because the mean of its divisors is an integer number (17238936).

Almost surely, 2^68834621 is an apocalyptic number.

It is an amenable number.

68834621 is a deficient number, since it is larger than the sum of its proper divisors (121123).

68834621 is a wasteful number, since it uses less digits than its factorization.

68834621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121122.

The product of its digits is 55296, while the sum is 38.

The square root of 68834621 is about 8296.6632449437. The cubic root of 68834621 is about 409.8286434433.

The spelling of 68834621 in words is "sixty-eight million, eight hundred thirty-four thousand, six hundred twenty-one".