67840986 has 16 divisors (see below), whose sum is σ = 135770400. Its totient is φ = 22598928.

The previous prime is 67840933. The next prime is 67841003. The reversal of 67840986 is 68904876.

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, 10480 + ... + 15668.

It is an arithmetic number, because the mean of its divisors is an integer number (8485650).

Almost surely, 2^67840986 is an apocalyptic number.

67840986 is an abundant number, since it is smaller than the sum of its proper divisors (67929414).

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

67840986 is a wasteful number, since it uses less digits than its factorization.

67840986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7373.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 67840986 is about 8236.5639680634. The cubic root of 67840986 is about 407.8471048599.

The spelling of 67840986 in words is "sixty-seven million, eight hundred forty thousand, nine hundred eighty-six".