28919354 has 8 divisors (see below), whose sum is σ = 43536468. Its totient is φ = 14407200.

The previous prime is 28919353. The next prime is 28919377. The reversal of 28919354 is 45391982.

It can be written as a sum of positive squares in 2 ways, for example, as 28912129 + 7225 = 5377^2 + 85^2 .

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 (28919353) 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, 25547 + ... + 26654.

Almost surely, 2^28919354 is an apocalyptic number.

28919354 is a deficient number, since it is larger than the sum of its proper divisors (14617114).

28919354 is a wasteful number, since it uses less digits than its factorization.

28919354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52480.

The product of its digits is 77760, while the sum is 41.

The square root of 28919354 is about 5377.6718010678. The cubic root of 28919354 is about 306.9466249910.

The spelling of 28919354 in words is "twenty-eight million, nine hundred nineteen thousand, three hundred fifty-four".