28807002 has 120 divisors (see below), whose sum is σ = 79453440. Its totient is φ = 7756560.

The previous prime is 28807001. The next prime is 28807003. The reversal of 28807002 is 20070882.

It is an interprime number because it is at equal distance from previous prime (28807001) and next prime (28807003).

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

It is not an unprimeable number, because it can be changed into a prime (28807001) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 150727 + ... + 150917.

It is an arithmetic number, because the mean of its divisors is an integer number (662112).

Almost surely, 2^28807002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28807002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39726720).

28807002 is an abundant number, since it is smaller than the sum of its proper divisors (50646438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28807002 is a wasteful number, since it uses less digits than its factorization.

28807002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 28807002 is about 5367.2154791847. The cubic root of 28807002 is about 306.5486121420.

Adding to 28807002 its reverse (20070882), we get a palindrome (48877884).

The spelling of 28807002 in words is "twenty-eight million, eight hundred seven thousand, two".