28906753 has 4 divisors (see below), whose sum is σ = 28926640. Its totient is φ = 28886868.

The previous prime is 28906747. The next prime is 28906769. The reversal of 28906753 is 35760982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28906753 - 2⁵ = 28906721 is a prime.

It is the 5377-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28906723) by changing a digit.

It is a nontrivial repunit in base 5376.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7575 + ... + 10732.

It is an arithmetic number, because the mean of its divisors is an integer number (7231660).

Almost surely, 2^28906753 is an apocalyptic number.

It is an amenable number.

28906753 is a deficient number, since it is larger than the sum of its proper divisors (19887).

28906753 is a wasteful number, since it uses less digits than its factorization.

28906753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19886.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 28906753 is about 5376.5000697480. The cubic root of 28906753 is about 306.9020366698.

The spelling of 28906753 in words is "twenty-eight million, nine hundred six thousand, seven hundred fifty-three".