3534728 has 8 divisors (see below), whose sum is σ = 6627630. Its totient is φ = 1767360.

The previous prime is 3534701. The next prime is 3534731. The reversal of 3534728 is 8274353.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2184484 + 1350244 = 1478^2 + 1162^2 .

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

It is a d-powerful number, because it can be written as 3⁶ + 5⁹ + 3¹² + 4¹⁰ + 7³ + 2 + 8³ .

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 3534694 and 3534703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220913 + ... + 220928.

Almost surely, 2^3534728 is an apocalyptic number.

It is an amenable number.

3534728 is a deficient number, since it is larger than the sum of its proper divisors (3092902).

3534728 is a wasteful number, since it uses less digits than its factorization.

3534728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441847 (or 441843 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 3534728 is about 1880.0872320188. The cubic root of 3534728 is about 152.3299618702.

It can be divided in two parts, 3534 and 728, that multiplied together give a palindrome (2572752).

The spelling of 3534728 in words is "three million, five hundred thirty-four thousand, seven hundred twenty-eight".