28807053 has 16 divisors (see below), whose sum is σ = 43035456. Its totient is φ = 16986240.

The previous prime is 28807039. The next prime is 28807069. The reversal of 28807053 is 35070882.

It is not a de Polignac number, because 28807053 - 2⁶ = 28806989 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28807003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10576 + ... + 13017.

It is an arithmetic number, because the mean of its divisors is an integer number (2689716).

Almost surely, 2^28807053 is an apocalyptic number.

It is an amenable number.

28807053 is a deficient number, since it is larger than the sum of its proper divisors (14228403).

28807053 is a wasteful number, since it uses less digits than its factorization.

28807053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23644.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 28807053 is about 5367.2202302495. The cubic root of 28807053 is about 306.5487930467.

The spelling of 28807053 in words is "twenty-eight million, eight hundred seven thousand, fifty-three".