68837504 has 16 divisors (see below), whose sum is σ = 137137470. Its totient is φ = 34418688.

The previous prime is 68837491. The next prime is 68837507. The reversal of 68837504 is 40573886.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54760000 + 14077504 = 7400^2 + 3752^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68837507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268769 + ... + 269024.

Almost surely, 2^68837504 is an apocalyptic number.

68837504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68837504 is a deficient number, since it is larger than the sum of its proper divisors (68299966).

68837504 is an equidigital number, since it uses as much as digits as its factorization.

68837504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537807 (or 537795 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 68837504 is about 8296.8369876719. The cubic root of 68837504 is about 409.8343649803.

The spelling of 68837504 in words is "sixty-eight million, eight hundred thirty-seven thousand, five hundred four".