28906053 has 12 divisors (see below), whose sum is σ = 42364224. Its totient is φ = 17518600.

The previous prime is 28906027. The next prime is 28906057. The reversal of 28906053 is 35060982.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-28906053 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28906057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39453 + ... + 40178.

It is an arithmetic number, because the mean of its divisors is an integer number (3530352).

Almost surely, 2^28906053 is an apocalyptic number.

It is an amenable number.

28906053 is a deficient number, since it is larger than the sum of its proper divisors (13458171).

28906053 is a wasteful number, since it uses less digits than its factorization.

28906053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79656 (or 79645 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 28906053 is about 5376.4349712426. The cubic root of 28906053 is about 306.8995593575.

The spelling of 28906053 in words is "twenty-eight million, nine hundred six thousand, fifty-three".