68579650 has 12 divisors (see below), whose sum is σ = 127558242. Its totient is φ = 27431840.

The previous prime is 68579551. The next prime is 68579669. The reversal of 68579650 is 5697586.

It can be written as a sum of positive squares in 3 ways, for example, as 55756089 + 12823561 = 7467^2 + 3581^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68579650.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 685747 + ... + 685846.

Almost surely, 2^68579650 is an apocalyptic number.

68579650 is a deficient number, since it is larger than the sum of its proper divisors (58978592).

68579650 is a wasteful number, since it uses less digits than its factorization.

68579650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371605 (or 1371600 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 68579650 is about 8281.2831131413. The cubic root of 68579650 is about 409.3220005975.

The spelling of 68579650 in words is "sixty-eight million, five hundred seventy-nine thousand, six hundred fifty".