5406728 has 8 divisors (see below), whose sum is σ = 10137630. Its totient is φ = 2703360.

The previous prime is 5406719. The next prime is 5406733. The reversal of 5406728 is 8276045.

It can be written as a sum of positive squares in only one way, i.e., 4919524 + 487204 = 2218^2 + 698^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 5406694 and 5406703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337913 + ... + 337928.

Almost surely, 2^5406728 is an apocalyptic number.

It is an amenable number.

5406728 is a deficient number, since it is larger than the sum of its proper divisors (4730902).

5406728 is a wasteful number, since it uses less digits than its factorization.

5406728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675847 (or 675843 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 5406728 is about 2325.2371922021. The cubic root of 5406728 is about 175.5138962436.

The spelling of 5406728 in words is "five million, four hundred six thousand, seven hundred twenty-eight".