28835457 has 16 divisors (see below), whose sum is σ = 44067840. Its totient is φ = 16429392.

The previous prime is 28835449. The next prime is 28835473. The reversal of 28835457 is 75453882.

It is not a de Polignac number, because 28835457 - 2³ = 28835449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28835437) 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, 6148 + ... + 9770.

It is an arithmetic number, because the mean of its divisors is an integer number (2754240).

Almost surely, 2^28835457 is an apocalyptic number.

It is an amenable number.

28835457 is a deficient number, since it is larger than the sum of its proper divisors (15232383).

28835457 is a wasteful number, since it uses less digits than its factorization.

28835457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4012.

The product of its digits is 268800, while the sum is 42.

The square root of 28835457 is about 5369.8656407772. The cubic root of 28835457 is about 306.6495131920.

It can be divided in two parts, 28835 and 457, that added together give a palindrome (29292).

The spelling of 28835457 in words is "twenty-eight million, eight hundred thirty-five thousand, four hundred fifty-seven".