68485221 has 24 divisors (see below), whose sum is σ = 113705280. Its totient is φ = 38909376.

The previous prime is 68485213. The next prime is 68485229. The reversal of 68485221 is 12258486.

It is an interprime number because it is at equal distance from previous prime (68485213) and next prime (68485229).

It is not a de Polignac number, because 68485221 - 2³ = 68485213 is a prime.

It is a super-3 number, since 3×68485221³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68485229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8241 + ... + 14313.

It is an arithmetic number, because the mean of its divisors is an integer number (4737720).

Almost surely, 2^68485221 is an apocalyptic number.

It is an amenable number.

68485221 is a deficient number, since it is larger than the sum of its proper divisors (45220059).

68485221 is a wasteful number, since it uses less digits than its factorization.

68485221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6265 (or 6262 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 68485221 is about 8275.5797984190. The cubic root of 68485221 is about 409.1340458082.

It can be divided in two parts, 684 and 85221, that added together give a triangular number (85905 = T₄₁₄).

The spelling of 68485221 in words is "sixty-eight million, four hundred eighty-five thousand, two hundred twenty-one".