28624017 has 8 divisors (see below), whose sum is σ = 38193120. Its totient is φ = 19068800.

The previous prime is 28624007. The next prime is 28624031. The reversal of 28624017 is 71042682.

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 28624017 - 2⁸ = 28623761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28624007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3142 + ... + 8192.

It is an arithmetic number, because the mean of its divisors is an integer number (4774140).

Almost surely, 2^28624017 is an apocalyptic number.

It is an amenable number.

28624017 is a deficient number, since it is larger than the sum of its proper divisors (9569103).

28624017 is a wasteful number, since it uses less digits than its factorization.

28624017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6943.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 28624017 is about 5350.1417738224. The cubic root of 28624017 is about 305.8981569751.

Adding to 28624017 its reverse (71042682), we get a palindrome (99666699).

The spelling of 28624017 in words is "twenty-eight million, six hundred twenty-four thousand, seventeen".