67396047 has 4 divisors (see below), whose sum is σ = 89861400. Its totient is φ = 44930696.

The previous prime is 67396013. The next prime is 67396057. The reversal of 67396047 is 74069376.

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 67396047 - 2¹⁸ = 67133903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67396057) 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 3 ways as a sum of consecutive naturals, for example, 11232672 + ... + 11232677.

It is an arithmetic number, because the mean of its divisors is an integer number (22465350).

Almost surely, 2^67396047 is an apocalyptic number.

67396047 is a deficient number, since it is larger than the sum of its proper divisors (22465353).

67396047 is a wasteful number, since it uses less digits than its factorization.

67396047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22465352.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 67396047 is about 8209.5095468609. The cubic root of 67396047 is about 406.9535189107.

The spelling of 67396047 in words is "sixty-seven million, three hundred ninety-six thousand, forty-seven".