68819375 has 20 divisors (see below), whose sum is σ = 86691000. Its totient is φ = 54612000.

The previous prime is 68819351. The next prime is 68819419. The reversal of 68819375 is 57391886.

It is a happy number.

It is not a de Polignac number, because 68819375 - 2⁸ = 68819119 is a prime.

It is a super-2 number, since 2×68819375² = 9472212750781250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 92756 + ... + 93494.

It is an arithmetic number, because the mean of its divisors is an integer number (4334550).

Almost surely, 2^68819375 is an apocalyptic number.

68819375 is a deficient number, since it is larger than the sum of its proper divisors (17871625).

68819375 is an equidigital number, since it uses as much as digits as its factorization.

68819375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 893 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The square root of 68819375 is about 8295.7443909513. The cubic root of 68819375 is about 409.7983839180.

The spelling of 68819375 in words is "sixty-eight million, eight hundred nineteen thousand, three hundred seventy-five".