67223984 has 40 divisors (see below), whose sum is σ = 139330368. Its totient is φ = 31308800.

The previous prime is 67223983. The next prime is 67223999. The reversal of 67223984 is 48932276.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (67223983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26249 + ... + 28695.

Almost surely, 2^67223984 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 67223984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69665184).

67223984 is an abundant number, since it is smaller than the sum of its proper divisors (72106384).

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

67223984 is a wasteful number, since it uses less digits than its factorization.

67223984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573 (or 2567 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 67223984 is about 8199.0233564736. The cubic root of 67223984 is about 406.6069045328.

The spelling of 67223984 in words is "sixty-seven million, two hundred twenty-three thousand, nine hundred eighty-four".