28047338 has 8 divisors (see below), whose sum is σ = 45895680. Its totient is φ = 12748780.

The previous prime is 28047329. The next prime is 28047347. The reversal of 28047338 is 83374082.

It is an interprime number because it is at equal distance from previous prime (28047329) and next prime (28047347).

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 = 28047298 and 28047307.

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, 637418 + ... + 637461.

It is an arithmetic number, because the mean of its divisors is an integer number (5736960).

Almost surely, 2^28047338 is an apocalyptic number.

28047338 is a deficient number, since it is larger than the sum of its proper divisors (17848342).

28047338 is a wasteful number, since it uses less digits than its factorization.

28047338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274892.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 28047338 is about 5295.9737537114. The cubic root of 28047338 is about 303.8299270888.

The spelling of 28047338 in words is "twenty-eight million, forty-seven thousand, three hundred thirty-eight".