28024623 has 40 divisors (see below), whose sum is σ = 46417536. Its totient is φ = 16707600.

The previous prime is 28024621. The next prime is 28024637. The reversal of 28024623 is 32642082.

It is not a de Polignac number, because 28024623 - 2¹ = 28024621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28024621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 63040 + ... + 63482.

Almost surely, 2^28024623 is an apocalyptic number.

28024623 is a deficient number, since it is larger than the sum of its proper divisors (18392913).

28024623 is a wasteful number, since it uses less digits than its factorization.

28024623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 28024623 is about 5293.8287656478. The cubic root of 28024623 is about 303.7478829299.

The spelling of 28024623 in words is "twenty-eight million, twenty-four thousand, six hundred twenty-three".