28470306 has 8 divisors (see below), whose sum is σ = 56940624. Its totient is φ = 9490100.

The previous prime is 28470301. The next prime is 28470311. The reversal of 28470306 is 60307482.

It is an interprime number because it is at equal distance from previous prime (28470301) and next prime (28470311).

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

28470306 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28470301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2372520 + ... + 2372531.

It is an arithmetic number, because the mean of its divisors is an integer number (7117578).

Almost surely, 2^28470306 is an apocalyptic number.

28470306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28470306 is a wasteful number, since it uses less digits than its factorization.

28470306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745056.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 28470306 is about 5335.7573033263. The cubic root of 28470306 is about 305.3496161086.

Adding to 28470306 its reverse (60307482), we get a palindrome (88777788).

The spelling of 28470306 in words is "twenty-eight million, four hundred seventy thousand, three hundred six".