68460813 has 12 divisors (see below), whose sum is σ = 99240960. Its totient is φ = 45477576.

The previous prime is 68460779. The next prime is 68460817. The reversal of 68460813 is 31806486.

It is a happy number.

It is not a de Polignac number, because 68460813 - 2¹⁰ = 68459789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68460817) 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, 10893 + ... + 15986.

It is an arithmetic number, because the mean of its divisors is an integer number (8270080).

Almost surely, 2^68460813 is an apocalyptic number.

It is an amenable number.

68460813 is a deficient number, since it is larger than the sum of its proper divisors (30780147).

68460813 is a wasteful number, since it uses less digits than its factorization.

68460813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27168 (or 27165 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 68460813 is about 8274.1049667018. The cubic root of 68460813 is about 409.0854351725.

The spelling of 68460813 in words is "sixty-eight million, four hundred sixty thousand, eight hundred thirteen".