67696544 has 96 divisors (see below), whose sum is σ = 150958080. Its totient is φ = 29728512.

The previous prime is 67696537. The next prime is 67696549. The reversal of 67696544 is 44569676.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (67696549) 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 15 ways as a sum of consecutive naturals, for example, 657197 + ... + 657299.

It is an arithmetic number, because the mean of its divisors is an integer number (1572480).

Almost surely, 2^67696544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67696544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75479040).

67696544 is an abundant number, since it is smaller than the sum of its proper divisors (83261536).

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

67696544 is a wasteful number, since it uses less digits than its factorization.

67696544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 194 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 47.

The square root of 67696544 is about 8227.7909550498. The cubic root of 67696544 is about 407.5574465789.

The spelling of 67696544 in words is "sixty-seven million, six hundred ninety-six thousand, five hundred forty-four".