67378479 has 12 divisors (see below), whose sum is σ = 104505624. Its totient is φ = 38501904.

The previous prime is 67378447. The next prime is 67378481. The reversal of 67378479 is 97487376.

It is not a de Polignac number, because 67378479 - 2⁵ = 67378447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67378279) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 229032 + ... + 229325.

It is an arithmetic number, because the mean of its divisors is an integer number (8708802).

Almost surely, 2^67378479 is an apocalyptic number.

67378479 is a deficient number, since it is larger than the sum of its proper divisors (37127145).

67378479 is a wasteful number, since it uses less digits than its factorization.

67378479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458374 (or 458367 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 51.

The square root of 67378479 is about 8208.4394984674. The cubic root of 67378479 is about 406.9181559034.

The spelling of 67378479 in words is "sixty-seven million, three hundred seventy-eight thousand, four hundred seventy-nine".