28926319 has 4 divisors (see below), whose sum is σ = 28942200. Its totient is φ = 28910440.

The previous prime is 28926307. The next prime is 28926347. The reversal of 28926319 is 91362982.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28926319 - 2⁹ = 28925807 is a prime.

It is a super-2 number, since 2×28926319² = 1673463861779522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28926349) 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, 4792 + ... + 8989.

It is an arithmetic number, because the mean of its divisors is an integer number (7235550).

Almost surely, 2^28926319 is an apocalyptic number.

28926319 is a deficient number, since it is larger than the sum of its proper divisors (15881).

28926319 is a wasteful number, since it uses less digits than its factorization.

28926319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15880.

The product of its digits is 46656, while the sum is 40.

The square root of 28926319 is about 5378.3193471567. The cubic root of 28926319 is about 306.9712649101.

The spelling of 28926319 in words is "twenty-eight million, nine hundred twenty-six thousand, three hundred nineteen".