68838517 has 16 divisors (see below), whose sum is σ = 78756480. Its totient is φ = 59558400.

The previous prime is 68838509. The next prime is 68838529. The reversal of 68838517 is 71583886.

It is not a de Polignac number, because 68838517 - 2³ = 68838509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68838017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60409 + ... + 61537.

It is an arithmetic number, because the mean of its divisors is an integer number (4922280).

Almost surely, 2^68838517 is an apocalyptic number.

It is an amenable number.

68838517 is a deficient number, since it is larger than the sum of its proper divisors (9917963).

68838517 is a wasteful number, since it uses less digits than its factorization.

68838517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404.

The product of its digits is 322560, while the sum is 46.

The square root of 68838517 is about 8296.8980348079. The cubic root of 68838517 is about 409.8363753193.

It can be divided in two parts, 6883 and 8517, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 68838517 in words is "sixty-eight million, eight hundred thirty-eight thousand, five hundred seventeen".