68635698 has 64 divisors (see below), whose sum is σ = 150958080. Its totient is φ = 20719872.

The previous prime is 68635687. The next prime is 68635709. The reversal of 68635698 is 89653686.

It is an interprime number because it is at equal distance from previous prime (68635687) and next prime (68635709).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 68635698.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 493713 + ... + 493851.

It is an arithmetic number, because the mean of its divisors is an integer number (2358720).

Almost surely, 2^68635698 is an apocalyptic number.

68635698 is an abundant number, since it is smaller than the sum of its proper divisors (82322382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68635698 is a wasteful number, since it uses less digits than its factorization.

68635698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311.

The product of its digits is 1866240, while the sum is 51.

The square root of 68635698 is about 8284.6664386685. Note that the first 3 decimals coincide. The cubic root of 68635698 is about 409.4334789175.

It can be divided in two parts, 6863 and 5698, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 68635698 in words is "sixty-eight million, six hundred thirty-five thousand, six hundred ninety-eight".