28746346 has 8 divisors (see below), whose sum is σ = 43336800. Its totient is φ = 14300748.

The previous prime is 28746329. The next prime is 28746349. The reversal of 28746346 is 64364782.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 28746299 and 28746308.

It is not an unprimeable number, because it can be changed into a prime (28746349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35716 + ... + 36511.

It is an arithmetic number, because the mean of its divisors is an integer number (5417100).

Almost surely, 2^28746346 is an apocalyptic number.

28746346 is a deficient number, since it is larger than the sum of its proper divisors (14590454).

28746346 is a wasteful number, since it uses less digits than its factorization.

28746346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72428.

The product of its digits is 193536, while the sum is 40.

The square root of 28746346 is about 5361.5618992976. The cubic root of 28746346 is about 306.3333047846. Note that the first 4 decimals are identical.

It can be divided in two parts, 28746 and 346, that added together give a palindrome (29092).

The spelling of 28746346 in words is "twenty-eight million, seven hundred forty-six thousand, three hundred forty-six".