68903508 has 24 divisors (see below), whose sum is σ = 161596512. Its totient is φ = 22850464.

The previous prime is 68903491. The next prime is 68903521. The reversal of 68903508 is 80530986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12210 + ... + 16937.

It is an arithmetic number, because the mean of its divisors is an integer number (6733188).

Almost surely, 2^68903508 is an apocalyptic number.

It is an amenable number.

68903508 is an abundant number, since it is smaller than the sum of its proper divisors (92693004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68903508 is a wasteful number, since it uses less digits than its factorization.

68903508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29351 (or 29349 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 68903508 is about 8300.8136950542. The cubic root of 68903508 is about 409.9653113622.

The spelling of 68903508 in words is "sixty-eight million, nine hundred three thousand, five hundred eight".