68929685 has 16 divisors (see below), whose sum is σ = 90649152. Its totient is φ = 49900800.

The previous prime is 68929681. The next prime is 68929697. The reversal of 68929685 is 58692986.

It is a happy number.

It is not a de Polignac number, because 68929685 - 2² = 68929681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68929681) 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, 9725 + ... + 15245.

It is an arithmetic number, because the mean of its divisors is an integer number (5665572).

Almost surely, 2^68929685 is an apocalyptic number.

It is an amenable number.

68929685 is a deficient number, since it is larger than the sum of its proper divisors (21719467).

68929685 is a wasteful number, since it uses less digits than its factorization.

68929685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5764.

The product of its digits is 1866240, while the sum is 53.

The square root of 68929685 is about 8302.3903184565. The cubic root of 68929685 is about 410.0172211684.

The spelling of 68929685 in words is "sixty-eight million, nine hundred twenty-nine thousand, six hundred eighty-five".