28865002 has 8 divisors (see below), whose sum is σ = 43374276. Its totient is φ = 14406912.

The previous prime is 28864991. The next prime is 28865021. The reversal of 28865002 is 20056882.

It can be written as a sum of positive squares in 2 ways, for example, as 16900321 + 11964681 = 4111^2 + 3459^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11353 + ... + 13660.

Almost surely, 2^28865002 is an apocalyptic number.

28865002 is a deficient number, since it is larger than the sum of its proper divisors (14509274).

28865002 is a wasteful number, since it uses less digits than its factorization.

28865002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25592.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 28865002 is about 5372.6159363945. The cubic root of 28865002 is about 306.7542091493.

The spelling of 28865002 in words is "twenty-eight million, eight hundred sixty-five thousand, two".