68642598 has 16 divisors (see below), whose sum is σ = 138161520. Its totient is φ = 22734816.

The previous prime is 68642591. The next prime is 68642647. The reversal of 68642598 is 89524686.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68642591) 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 7 ways as a sum of consecutive naturals, for example, 35493 + ... + 37376.

It is an arithmetic number, because the mean of its divisors is an integer number (8635095).

Almost surely, 2^68642598 is an apocalyptic number.

68642598 is an abundant number, since it is smaller than the sum of its proper divisors (69518922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68642598 is a wasteful number, since it uses less digits than its factorization.

68642598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73031.

The product of its digits is 829440, while the sum is 48.

The square root of 68642598 is about 8285.0828601771. The cubic root of 68642598 is about 409.4471986795.

The spelling of 68642598 in words is "sixty-eight million, six hundred forty-two thousand, five hundred ninety-eight".