68876249 has 4 divisors (see below), whose sum is σ = 74174436. Its totient is φ = 63578064.

The previous prime is 68876219. The next prime is 68876251. The reversal of 68876249 is 94267886.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12145225 + 56731024 = 3485^2 + 7532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68876249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68876197 and 68876206.

It is not an unprimeable number, because it can be changed into a prime (68876209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2649074 + ... + 2649099.

It is an arithmetic number, because the mean of its divisors is an integer number (18543609).

Almost surely, 2^68876249 is an apocalyptic number.

It is an amenable number.

68876249 is a deficient number, since it is larger than the sum of its proper divisors (5298187).

68876249 is a wasteful number, since it uses less digits than its factorization.

68876249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5298186.

The product of its digits is 1161216, while the sum is 50.

The square root of 68876249 is about 8299.1715851644. The cubic root of 68876249 is about 409.9112419408.

The spelling of 68876249 in words is "sixty-eight million, eight hundred seventy-six thousand, two hundred forty-nine".