28120935 has 8 divisors (see below), whose sum is σ = 44993520. Its totient is φ = 14997824.

The previous prime is 28120933. The next prime is 28120949. The reversal of 28120935 is 53902182.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28120935 - 2¹ = 28120933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28120933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937350 + ... + 937379.

It is an arithmetic number, because the mean of its divisors is an integer number (5624190).

Almost surely, 2^28120935 is an apocalyptic number.

28120935 is a deficient number, since it is larger than the sum of its proper divisors (16872585).

28120935 is a wasteful number, since it uses less digits than its factorization.

28120935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874737.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 28120935 is about 5302.9175931745. The cubic root of 28120935 is about 304.0954477239.

The spelling of 28120935 in words is "twenty-eight million, one hundred twenty thousand, nine hundred thirty-five".