67479984 has 240 divisors, whose sum is σ = 231547680. Its totient is φ = 18063360.

The previous prime is 67479967. The next prime is 67480009. The reversal of 67479984 is 48997476.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 67479984.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 597112 + ... + 597224.

It is an arithmetic number, because the mean of its divisors is an integer number (964782).

Almost surely, 2^67479984 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 67479984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115773840).

67479984 is an abundant number, since it is smaller than the sum of its proper divisors (164067696).

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

67479984 is a wasteful number, since it uses less digits than its factorization.

67479984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 171 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 67479984 is about 8214.6201372918. The cubic root of 67479984 is about 407.1223927453.

The spelling of 67479984 in words is "sixty-seven million, four hundred seventy-nine thousand, nine hundred eighty-four".