68897413 has 12 divisors (see below), whose sum is σ = 78996708. Its totient is φ = 59854080.

The previous prime is 68897399. The next prime is 68897449. The reversal of 68897413 is 31479886.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 23980609 + 44916804 = 4897^2 + 6702^2 .

It is a de Polignac number, because none of the positive numbers 2^k-68897413 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 (68897113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9118 + ... + 14863.

It is an arithmetic number, because the mean of its divisors is an integer number (6583059).

Almost surely, 2^68897413 is an apocalyptic number.

It is an amenable number.

68897413 is a deficient number, since it is larger than the sum of its proper divisors (10099295).

68897413 is a wasteful number, since it uses less digits than its factorization.

68897413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24024 (or 24011 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The square root of 68897413 is about 8300.4465542524. The cubic root of 68897413 is about 409.9532229005.

The spelling of 68897413 in words is "sixty-eight million, eight hundred ninety-seven thousand, four hundred thirteen".