28319059 has 4 divisors (see below), whose sum is σ = 29984904. Its totient is φ = 26653216.

The previous prime is 28319047. The next prime is 28319099. The reversal of 28319059 is 95091382.

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 28319059 - 2²¹ = 26221907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28319009) 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, 832897 + ... + 832930.

It is an arithmetic number, because the mean of its divisors is an integer number (7496226).

Almost surely, 2^28319059 is an apocalyptic number.

28319059 is a deficient number, since it is larger than the sum of its proper divisors (1665845).

28319059 is a wasteful number, since it uses less digits than its factorization.

28319059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665844.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 28319059 is about 5321.5654651615. The cubic root of 28319059 is about 304.8079378471.

The spelling of 28319059 in words is "twenty-eight million, three hundred nineteen thousand, fifty-nine".