68860689 has 32 divisors (see below), whose sum is σ = 99525888. Its totient is φ = 42240000.

The previous prime is 68860679. The next prime is 68860691. The reversal of 68860689 is 98606886.

It is not a de Polignac number, because 68860689 - 2⁸ = 68860433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68860639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285609 + ... + 285849.

It is an arithmetic number, because the mean of its divisors is an integer number (3110184).

Almost surely, 2^68860689 is an apocalyptic number.

68860689 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

68860689 is a deficient number, since it is larger than the sum of its proper divisors (30665199).

68860689 is a wasteful number, since it uses less digits than its factorization.

68860689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409.

The product of its (nonzero) digits is 995328, while the sum is 51.

The square root of 68860689 is about 8298.2340892506. The cubic root of 68860689 is about 409.8803716027.

The spelling of 68860689 in words is "sixty-eight million, eight hundred sixty thousand, six hundred eighty-nine".