68609396 has 24 divisors (see below), whose sum is σ = 124472040. Its totient is φ = 33063552.

The previous prime is 68609383. The next prime is 68609459. The reversal of 68609396 is 69390686.

It can be written as a sum of positive squares in 4 ways, for example, as 15319396 + 53290000 = 3914^2 + 7300^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68609396.

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 7 ways as a sum of consecutive naturals, for example, 14006 + ... + 18258.

It is an arithmetic number, because the mean of its divisors is an integer number (5186335).

Almost surely, 2^68609396 is an apocalyptic number.

It is an amenable number.

68609396 is a deficient number, since it is larger than the sum of its proper divisors (55862644).

68609396 is a wasteful number, since it uses less digits than its factorization.

68609396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4403 (or 4401 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 68609396 is about 8283.0788961593. The cubic root of 68609396 is about 409.3811723406.

The spelling of 68609396 in words is "sixty-eight million, six hundred nine thousand, three hundred ninety-six".