28770002 has 8 divisors (see below), whose sum is σ = 43248816. Its totient is φ = 14353732.

The previous prime is 28769999. The next prime is 28770011. The reversal of 28770002 is 20007782.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14468 + ... + 16335.

It is an arithmetic number, because the mean of its divisors is an integer number (5406102).

Almost surely, 2^28770002 is an apocalyptic number.

28770002 is a deficient number, since it is larger than the sum of its proper divisors (14478814).

28770002 is a wasteful number, since it uses less digits than its factorization.

28770002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31272.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 28770002 is about 5363.7675191977. The cubic root of 28770002 is about 306.4173112153.

Adding to 28770002 its reverse (20007782), we get a palindrome (48777784).

The spelling of 28770002 in words is "twenty-eight million, seven hundred seventy thousand, two".