28895957 has 4 divisors (see below), whose sum is σ = 29568000. Its totient is φ = 28223916.

The previous prime is 28895947. The next prime is 28895959. The reversal of 28895957 is 75959882.

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 28895957 - 2⁸ = 28895701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28895899 and 28895908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28895959) 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, 335957 + ... + 336042.

It is an arithmetic number, because the mean of its divisors is an integer number (7392000).

Almost surely, 2^28895957 is an apocalyptic number.

It is an amenable number.

28895957 is a deficient number, since it is larger than the sum of its proper divisors (672043).

28895957 is an equidigital number, since it uses as much as digits as its factorization.

28895957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672042.

The product of its digits is 1814400, while the sum is 53.

The square root of 28895957 is about 5375.4959771169. The cubic root of 28895957 is about 306.8638249878.

The spelling of 28895957 in words is "twenty-eight million, eight hundred ninety-five thousand, nine hundred fifty-seven".