28860007 has 8 divisors (see below), whose sum is σ = 31558032. Its totient is φ = 26174400.

The previous prime is 28860001. The next prime is 28860019. The reversal of 28860007 is 70006882.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28860007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28860001) 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, 2157 + ... + 7897.

It is an arithmetic number, because the mean of its divisors is an integer number (3944754).

Almost surely, 2^28860007 is an apocalyptic number.

28860007 is a deficient number, since it is larger than the sum of its proper divisors (2698025).

28860007 is a wasteful number, since it uses less digits than its factorization.

28860007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6209.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 28860007 is about 5372.1510589335. The cubic root of 28860007 is about 306.7365138371.

Adding to 28860007 its reverse (70006882), we get a palindrome (98866889).

The spelling of 28860007 in words is "twenty-eight million, eight hundred sixty thousand, seven".