68603512 has 8 divisors (see below), whose sum is σ = 128631600. Its totient is φ = 34301752.

The previous prime is 68603461. The next prime is 68603519. The reversal of 68603512 is 21530686.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68603519) by changing a digit.

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 as a sum of consecutive naturals, namely, 4287712 + ... + 4287727.

It is an arithmetic number, because the mean of its divisors is an integer number (16078950).

Almost surely, 2^68603512 is an apocalyptic number.

It is an amenable number.

68603512 is a deficient number, since it is larger than the sum of its proper divisors (60028088).

68603512 is a wasteful number, since it uses less digits than its factorization.

68603512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8575445 (or 8575441 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 68603512 is about 8282.7237066076. The cubic root of 68603512 is about 409.3694690471.

The spelling of 68603512 in words is "sixty-eight million, six hundred three thousand, five hundred twelve".