68876669 has 4 divisors (see below), whose sum is σ = 70478496. Its totient is φ = 67274844.

The previous prime is 68876657. The next prime is 68876671. The reversal of 68876669 is 96667886.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68876669 - 2⁸ = 68876413 is a prime.

It is a super-2 number, since 2×68876669² = 9487991065071122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68876609) 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, 800849 + ... + 800934.

It is an arithmetic number, because the mean of its divisors is an integer number (17619624).

Almost surely, 2^68876669 is an apocalyptic number.

It is an amenable number.

68876669 is a deficient number, since it is larger than the sum of its proper divisors (1601827).

68876669 is a wasteful number, since it uses less digits than its factorization.

68876669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601826.

The product of its digits is 5225472, while the sum is 56.

The square root of 68876669 is about 8299.1968888562. The cubic root of 68876669 is about 409.9120751375.

The spelling of 68876669 in words is "sixty-eight million, eight hundred seventy-six thousand, six hundred sixty-nine".