68239648 has 24 divisors (see below), whose sum is σ = 134531712. Its totient is φ = 34072896.

The previous prime is 68239637. The next prime is 68239681. The reversal of 68239648 is 84693286.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68239598 and 68239607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41661 + ... + 43267.

It is an arithmetic number, because the mean of its divisors is an integer number (5605488).

Almost surely, 2^68239648 is an apocalyptic number.

It is an amenable number.

68239648 is a deficient number, since it is larger than the sum of its proper divisors (66292064).

68239648 is a wasteful number, since it uses less digits than its factorization.

68239648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944 (or 2936 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 68239648 is about 8260.7292656278. The cubic root of 68239648 is about 408.6444384453.

It can be divided in two parts, 6823 and 9648, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 68239648 in words is "sixty-eight million, two hundred thirty-nine thousand, six hundred forty-eight".