28839045 has 8 divisors (see below), whose sum is σ = 46142496. Its totient is φ = 15380816.

The previous prime is 28839043. The next prime is 28839047. The reversal of 28839045 is 54093882.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28839043) and next prime (28839047).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28839045 - 2¹ = 28839043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28838994 and 28839012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28839043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961287 + ... + 961316.

It is an arithmetic number, because the mean of its divisors is an integer number (5767812).

Almost surely, 2^28839045 is an apocalyptic number.

It is an amenable number.

28839045 is a deficient number, since it is larger than the sum of its proper divisors (17303451).

28839045 is a wasteful number, since it uses less digits than its factorization.

28839045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922611.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 28839045 is about 5370.1997169565. The cubic root of 28839045 is about 306.6622314786.

The spelling of 28839045 in words is "twenty-eight million, eight hundred thirty-nine thousand, forty-five".