28348415 has 8 divisors (see below), whose sum is σ = 35115648. Its totient is φ = 21947040.

The previous prime is 28348403. The next prime is 28348421. The reversal of 28348415 is 51484382.

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

It is not a de Polignac number, because 28348415 - 2¹² = 28344319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91292 + ... + 91601.

It is an arithmetic number, because the mean of its divisors is an integer number (4389456).

Almost surely, 2^28348415 is an apocalyptic number.

28348415 is a deficient number, since it is larger than the sum of its proper divisors (6767233).

28348415 is a wasteful number, since it uses less digits than its factorization.

28348415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182929.

The product of its digits is 30720, while the sum is 35.

The square root of 28348415 is about 5324.3229616544. The cubic root of 28348415 is about 304.9132244404.

The spelling of 28348415 in words is "twenty-eight million, three hundred forty-eight thousand, four hundred fifteen".