67289947 has 8 divisors (see below), whose sum is σ = 71092800. Its totient is φ = 63585984.

The previous prime is 67289923. The next prime is 67289953. The reversal of 67289947 is 74998276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67289947 - 2⁷ = 67289819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67289894 and 67289903.

It is not an unprimeable number, because it can be changed into a prime (67289917) 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 7 ways as a sum of consecutive naturals, for example, 23322 + ... + 26047.

It is an arithmetic number, because the mean of its divisors is an integer number (8886600).

Almost surely, 2^67289947 is an apocalyptic number.

67289947 is a deficient number, since it is larger than the sum of its proper divisors (3802853).

67289947 is a wasteful number, since it uses less digits than its factorization.

67289947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49445.

The product of its digits is 1524096, while the sum is 52.

The square root of 67289947 is about 8203.0449834193. The cubic root of 67289947 is about 406.7398543215.

It can be divided in two parts, 6728 and 9947, that multiplied together give a cube (66923416 = 406³).

The spelling of 67289947 in words is "sixty-seven million, two hundred eighty-nine thousand, nine hundred forty-seven".