68698655 has 16 divisors (see below), whose sum is σ = 83799360. Its totient is φ = 54058752.

The previous prime is 68698639. The next prime is 68698673. The reversal of 68698655 is 55689686.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68698655 - 2⁴ = 68698639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68698597 and 68698606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140822 + ... + 141308.

It is an arithmetic number, because the mean of its divisors is an integer number (5237460).

Almost surely, 2^68698655 is an apocalyptic number.

68698655 is a deficient number, since it is larger than the sum of its proper divisors (15100705).

68698655 is a wasteful number, since it uses less digits than its factorization.

68698655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898.

The product of its digits is 3110400, while the sum is 53.

The square root of 68698655 is about 8288.4651775826. The cubic root of 68698655 is about 409.5586267485.

The spelling of 68698655 in words is "sixty-eight million, six hundred ninety-eight thousand, six hundred fifty-five".