28306119 has 8 divisors (see below), whose sum is σ = 37786240. Its totient is φ = 18848376.

The previous prime is 28306111. The next prime is 28306129. The reversal of 28306119 is 91160382.

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

It is not a de Polignac number, because 28306119 - 2³ = 28306111 is a prime.

It is a super-2 number, since 2×28306119² = 1602472745684322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28306111) by changing a digit.

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, 2377 + ... + 7890.

It is an arithmetic number, because the mean of its divisors is an integer number (4723280).

Almost surely, 2^28306119 is an apocalyptic number.

28306119 is a deficient number, since it is larger than the sum of its proper divisors (9480121).

28306119 is a wasteful number, since it uses less digits than its factorization.

28306119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11189.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 28306119 is about 5320.3495185937. The cubic root of 28306119 is about 304.7615048586.

The spelling of 28306119 in words is "twenty-eight million, three hundred six thousand, one hundred nineteen".