28378754 has 8 divisors (see below), whose sum is σ = 42966288. Its totient is φ = 14056660.

The previous prime is 28378739. The next prime is 28378759. The reversal of 28378754 is 45787382.

It is a happy number.

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 (28378759) 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, 66092 + ... + 66519.

It is an arithmetic number, because the mean of its divisors is an integer number (5370786).

Almost surely, 2^28378754 is an apocalyptic number.

28378754 is a deficient number, since it is larger than the sum of its proper divisors (14587534).

28378754 is a wasteful number, since it uses less digits than its factorization.

28378754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132720.

The product of its digits is 376320, while the sum is 44.

The square root of 28378754 is about 5327.1712944113. The cubic root of 28378754 is about 305.0219602570.

The spelling of 28378754 in words is "twenty-eight million, three hundred seventy-eight thousand, seven hundred fifty-four".