67985403 has 4 divisors (see below), whose sum is σ = 90647208. Its totient is φ = 45323600.

The previous prime is 67985381. The next prime is 67985419. The reversal of 67985403 is 30458976.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67985403 - 2⁸ = 67985147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67985443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11330898 + ... + 11330903.

It is an arithmetic number, because the mean of its divisors is an integer number (22661802).

Almost surely, 2^67985403 is an apocalyptic number.

67985403 is a deficient number, since it is larger than the sum of its proper divisors (22661805).

67985403 is a wasteful number, since it uses less digits than its factorization.

67985403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22661804.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 67985403 is about 8245.3261306027. The cubic root of 67985403 is about 408.1363022588.

The spelling of 67985403 in words is "sixty-seven million, nine hundred eighty-five thousand, four hundred three".