67568730 has 32 divisors (see below), whose sum is σ = 162739584. Its totient is φ = 17954496.

The previous prime is 67568729. The next prime is 67568749. The reversal of 67568730 is 3786576.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4947 + ... + 12633.

It is an arithmetic number, because the mean of its divisors is an integer number (5085612).

Almost surely, 2^67568730 is an apocalyptic number.

67568730 is an abundant number, since it is smaller than the sum of its proper divisors (95170854).

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

67568730 is a wasteful number, since it uses less digits than its factorization.

67568730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7990.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 67568730 is about 8220.0200729682. The cubic root of 67568730 is about 407.3007896286.

The spelling of 67568730 in words is "sixty-seven million, five hundred sixty-eight thousand, seven hundred thirty".