28035664 has 10 divisors (see below), whose sum is σ = 54319130. Its totient is φ = 14017824.

The previous prime is 28035629. The next prime is 28035671. The reversal of 28035664 is 46653082.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16064064 + 11971600 = 4008^2 + 3460^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 876099 + ... + 876130.

It is an arithmetic number, because the mean of its divisors is an integer number (5431913).

Almost surely, 2^28035664 is an apocalyptic number.

It is an amenable number.

28035664 is a deficient number, since it is larger than the sum of its proper divisors (26283466).

28035664 is a wasteful number, since it uses less digits than its factorization.

28035664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752237 (or 1752231 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 28035664 is about 5294.8714809710. The cubic root of 28035664 is about 303.7877673802.

The spelling of 28035664 in words is "twenty-eight million, thirty-five thousand, six hundred sixty-four".