28888453 has 8 divisors (see below), whose sum is σ = 32366880. Its totient is φ = 25552080.

The previous prime is 28888451. The next prime is 28888459. The reversal of 28888453 is 35488882.

It is a happy number.

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 28888453 - 2¹ = 28888451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28888451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35083 + ... + 35896.

It is an arithmetic number, because the mean of its divisors is an integer number (4045860).

Almost surely, 2^28888453 is an apocalyptic number.

It is an amenable number.

28888453 is a deficient number, since it is larger than the sum of its proper divisors (3478427).

28888453 is a wasteful number, since it uses less digits than its factorization.

28888453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71027.

The product of its digits is 491520, while the sum is 46.

The square root of 28888453 is about 5374.7979496908. The cubic root of 28888453 is about 306.8372595009.

The spelling of 28888453 in words is "twenty-eight million, eight hundred eighty-eight thousand, four hundred fifty-three".