28853057 has 4 divisors (see below), whose sum is σ = 29848020. Its totient is φ = 27858096.

The previous prime is 28853021. The next prime is 28853059. The reversal of 28853057 is 75035882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75035882 = 2 ⋅37517941.

It can be written as a sum of positive squares in 2 ways, for example, as 16008001 + 12845056 = 4001^2 + 3584^2 .

It is not a de Polignac number, because 28853057 - 2⁸ = 28852801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28853057.

It is not an unprimeable number, because it can be changed into a prime (28853059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497438 + ... + 497495.

It is an arithmetic number, because the mean of its divisors is an integer number (7462005).

Almost surely, 2^28853057 is an apocalyptic number.

It is an amenable number.

28853057 is a deficient number, since it is larger than the sum of its proper divisors (994963).

28853057 is an equidigital number, since it uses as much as digits as its factorization.

28853057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994962.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 28853057 is about 5371.5041655015. The cubic root of 28853057 is about 306.7118893349.

The spelling of 28853057 in words is "twenty-eight million, eight hundred fifty-three thousand, fifty-seven".