68702913 has 12 divisors (see below), whose sum is σ = 102439168. Its totient is φ = 44324280.

The previous prime is 68702911. The next prime is 68702947. The reversal of 68702913 is 31920786.

It is not a de Polignac number, because 68702913 - 2¹ = 68702911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68702911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122845 + ... + 123402.

Almost surely, 2^68702913 is an apocalyptic number.

It is an amenable number.

68702913 is a deficient number, since it is larger than the sum of its proper divisors (33736255).

68702913 is a wasteful number, since it uses less digits than its factorization.

68702913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246284 (or 246281 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 68702913 is about 8288.7220365989. The cubic root of 68702913 is about 409.5670881689.

The spelling of 68702913 in words is "sixty-eight million, seven hundred two thousand, nine hundred thirteen".