28619327 has 4 divisors (see below), whose sum is σ = 31221096. Its totient is φ = 26017560.

The previous prime is 28619321. The next prime is 28619329. The reversal of 28619327 is 72391682.

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 28619327 - 2¹⁴ = 28602943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28619321) 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, 1300868 + ... + 1300889.

It is an arithmetic number, because the mean of its divisors is an integer number (7805274).

Almost surely, 2^28619327 is an apocalyptic number.

28619327 is a deficient number, since it is larger than the sum of its proper divisors (2601769).

28619327 is a wasteful number, since it uses less digits than its factorization.

28619327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601768.

The product of its digits is 36288, while the sum is 38.

The square root of 28619327 is about 5349.7034497250. The cubic root of 28619327 is about 305.8814490858.

The spelling of 28619327 in words is "twenty-eight million, six hundred nineteen thousand, three hundred twenty-seven".