68736349 has 6 divisors (see below), whose sum is σ = 75553310. Its totient is φ = 62487480.

The previous prime is 68736347. The next prime is 68736359. The reversal of 68736349 is 94363786.

It can be written as a sum of positive squares in only one way, i.e., 57108249 + 11628100 = 7557^2 + 3410^2 .

It is not a de Polignac number, because 68736349 - 2¹ = 68736347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68736299 and 68736308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68736341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 283914 + ... + 284155.

Almost surely, 2^68736349 is an apocalyptic number.

It is an amenable number.

68736349 is a deficient number, since it is larger than the sum of its proper divisors (6816961).

68736349 is a wasteful number, since it uses less digits than its factorization.

68736349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568091 (or 568080 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 68736349 is about 8290.7387487485. The cubic root of 68736349 is about 409.6335194336.

The spelling of 68736349 in words is "sixty-eight million, seven hundred thirty-six thousand, three hundred forty-nine".