68878403 has 6 divisors (see below), whose sum is σ = 75709452. Its totient is φ = 62616620.

The previous prime is 68878387. The next prime is 68878457. The reversal of 68878403 is 30487886.

It is a happy number.

It is not a de Polignac number, because 68878403 - 2⁴ = 68878387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68878003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 284501 + ... + 284742.

It is an arithmetic number, because the mean of its divisors is an integer number (12618242).

Almost surely, 2^68878403 is an apocalyptic number.

68878403 is a deficient number, since it is larger than the sum of its proper divisors (6831049).

68878403 is a wasteful number, since it uses less digits than its factorization.

68878403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569265 (or 569254 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 68878403 is about 8299.3013561384. The cubic root of 68878403 is about 409.9155150133.

The spelling of 68878403 in words is "sixty-eight million, eight hundred seventy-eight thousand, four hundred three".