28535396 has 6 divisors (see below), whose sum is σ = 49936950. Its totient is φ = 14267696.

The previous prime is 28535393. The next prime is 28535411. The reversal of 28535396 is 69353582.

It can be written as a sum of positive squares in only one way, i.e., 28472896 + 62500 = 5336^2 + 250^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28535393) by changing a digit.

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, 3566921 + ... + 3566928.

It is an arithmetic number, because the mean of its divisors is an integer number (8322825).

Almost surely, 2^28535396 is an apocalyptic number.

It is an amenable number.

28535396 is a deficient number, since it is larger than the sum of its proper divisors (21401554).

28535396 is a wasteful number, since it uses less digits than its factorization.

28535396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7133853 (or 7133851 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The square root of 28535396 is about 5341.8532364714. The cubic root of 28535396 is about 305.5821400023.

The spelling of 28535396 in words is "twenty-eight million, five hundred thirty-five thousand, three hundred ninety-six".