68658769 has 8 divisors (see below), whose sum is σ = 71330048. Its totient is φ = 66016080.

The previous prime is 68658757. The next prime is 68658817. The reversal of 68658769 is 96785686.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68658769 - 2¹⁵ = 68626001 is a prime.

It is a super-2 number, since 2×68658769² = 9428053121190722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68658739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2187 + ... + 11920.

It is an arithmetic number, because the mean of its divisors is an integer number (8916256).

Almost surely, 2^68658769 is an apocalyptic number.

It is an amenable number.

68658769 is a deficient number, since it is larger than the sum of its proper divisors (2671279).

68658769 is a wasteful number, since it uses less digits than its factorization.

68658769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14295.

The product of its digits is 4354560, while the sum is 55.

The square root of 68658769 is about 8286.0587132846. The cubic root of 68658769 is about 409.4793490301.

The spelling of 68658769 in words is "sixty-eight million, six hundred fifty-eight thousand, seven hundred sixty-nine".