68679725 has 24 divisors (see below), whose sum is σ = 91756032. Its totient is φ = 50846400.

The previous prime is 68679719. The next prime is 68679731. The reversal of 68679725 is 52797686.

It is an interprime number because it is at equal distance from previous prime (68679719) and next prime (68679731).

It is not a de Polignac number, because 68679725 - 2²⁰ = 67631149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15899 + ... + 19751.

It is an arithmetic number, because the mean of its divisors is an integer number (3823168).

Almost surely, 2^68679725 is an apocalyptic number.

It is an amenable number.

68679725 is a deficient number, since it is larger than the sum of its proper divisors (23076307).

68679725 is a wasteful number, since it uses less digits than its factorization.

68679725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917 (or 3912 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 50.

The square root of 68679725 is about 8287.3231504509. The cubic root of 68679725 is about 409.5210051627.

The spelling of 68679725 in words is "sixty-eight million, six hundred seventy-nine thousand, seven hundred twenty-five".