67689244 has 24 divisors (see below), whose sum is σ = 139747328. Its totient is φ = 28073520.

The previous prime is 67689241. The next prime is 67689269. The reversal of 67689244 is 44298676.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 67689194 and 67689203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67689241) 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, 38124 + ... + 39859.

Almost surely, 2^67689244 is an apocalyptic number.

It is an amenable number.

67689244 is an abundant number, since it is smaller than the sum of its proper divisors (72058084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67689244 is a wasteful number, since it uses less digits than its factorization.

67689244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78025 (or 78023 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 67689244 is about 8227.3473246241. The cubic root of 67689244 is about 407.5427965140.

The spelling of 67689244 in words is "sixty-seven million, six hundred eighty-nine thousand, two hundred forty-four".