67478985 has 24 divisors (see below), whose sum is σ = 133673280. Its totient is φ = 30847392.

The previous prime is 67478977. The next prime is 67479007. The reversal of 67478985 is 58987476.

It is not a de Polignac number, because 67478985 - 2³ = 67478977 is a prime.

It is an alternating number because its digits alternate between even and odd.

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 23 ways as a sum of consecutive naturals, for example, 106795 + ... + 107424.

It is an arithmetic number, because the mean of its divisors is an integer number (5569720).

Almost surely, 2^67478985 is an apocalyptic number.

It is an amenable number.

67478985 is a deficient number, since it is larger than the sum of its proper divisors (66194295).

67478985 is a wasteful number, since it uses less digits than its factorization.

67478985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214237 (or 214234 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 67478985 is about 8214.5593308467. The cubic root of 67478985 is about 407.1203836692.

The spelling of 67478985 in words is "sixty-seven million, four hundred seventy-eight thousand, nine hundred eighty-five".