68878469 has 8 divisors (see below), whose sum is σ = 75870912. Its totient is φ = 62007840.

The previous prime is 68878457. The next prime is 68878529. The reversal of 68878469 is 96487886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68878469 - 2²⁰ = 67829893 is a prime.

It is a super-2 number, since 2×68878469² = 9488486983567922, 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 (68878669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29264 + ... + 31529.

It is an arithmetic number, because the mean of its divisors is an integer number (9483864).

Almost surely, 2^68878469 is an apocalyptic number.

It is an amenable number.

68878469 is a deficient number, since it is larger than the sum of its proper divisors (6992443).

68878469 is a wasteful number, since it uses less digits than its factorization.

68878469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60907.

The product of its digits is 4644864, while the sum is 56.

The square root of 68878469 is about 8299.3053323757. The cubic root of 68878469 is about 409.9156459417.

The spelling of 68878469 in words is "sixty-eight million, eight hundred seventy-eight thousand, four hundred sixty-nine".