28963306 has 8 divisors (see below), whose sum is σ = 43520004. Its totient is φ = 14456640.

The previous prime is 28963303. The next prime is 28963313. The reversal of 28963306 is 60336982.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25918281 + 3045025 = 5091^2 + 1745^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28963303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11025 + ... + 13396.

Almost surely, 2^28963306 is an apocalyptic number.

28963306 is a deficient number, since it is larger than the sum of its proper divisors (14556698).

28963306 is a wasteful number, since it uses less digits than its factorization.

28963306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25016.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 28963306 is about 5381.7567763696. The cubic root of 28963306 is about 307.1020467346.

The spelling of 28963306 in words is "twenty-eight million, nine hundred sixty-three thousand, three hundred six".