67728484 has 12 divisors (see below), whose sum is σ = 118630764. Its totient is φ = 33833984.

The previous prime is 67728473. The next prime is 67728487. The reversal of 67728484 is 48482776.

It can be written as a sum of positive squares in 2 ways, for example, as 33177600 + 34550884 = 5760^2 + 5878^2 .

It is not an unprimeable number, because it can be changed into a prime (67728487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089 + ... + 11824.

It is an arithmetic number, because the mean of its divisors is an integer number (9885897).

Almost surely, 2^67728484 is an apocalyptic number.

It is an amenable number.

67728484 is a deficient number, since it is larger than the sum of its proper divisors (50902280).

67728484 is a wasteful number, since it uses less digits than its factorization.

67728484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15134 (or 15132 counting only the distinct ones).

The product of its digits is 602112, while the sum is 46.

The square root of 67728484 is about 8229.7317088712. The cubic root of 67728484 is about 407.6215332485.

It can be divided in two parts, 677 and 28484, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 67728484 in words is "sixty-seven million, seven hundred twenty-eight thousand, four hundred eighty-four".