68202117 has 6 divisors (see below), whose sum is σ = 98514182. Its totient is φ = 45468072.

The previous prime is 68202091. The next prime is 68202119. The reversal of 68202117 is 71120286.

It can be written as a sum of positive squares in only one way, i.e., 64016001 + 4186116 = 8001^2 + 2046^2 .

It is not a de Polignac number, because 68202117 - 2¹⁵ = 68169349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68202119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3788998 + ... + 3789015.

Almost surely, 2^68202117 is an apocalyptic number.

It is an amenable number.

68202117 is a deficient number, since it is larger than the sum of its proper divisors (30312065).

68202117 is a wasteful number, since it uses less digits than its factorization.

68202117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7578019 (or 7578016 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 68202117 is about 8258.4573014577. The cubic root of 68202117 is about 408.5695081693.

The spelling of 68202117 in words is "sixty-eight million, two hundred two thousand, one hundred seventeen".