28590513 has 8 divisors (see below), whose sum is σ = 43566528. Its totient is φ = 16337424.

The previous prime is 28590509. The next prime is 28590521. The reversal of 28590513 is 31509582.

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

It is not a de Polignac number, because 28590513 - 2² = 28590509 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (28590503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680706 + ... + 680747.

It is an arithmetic number, because the mean of its divisors is an integer number (5445816).

Almost surely, 2^28590513 is an apocalyptic number.

It is an amenable number.

28590513 is a deficient number, since it is larger than the sum of its proper divisors (14976015).

28590513 is a wasteful number, since it uses less digits than its factorization.

28590513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361463.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 28590513 is about 5347.0097250706. The cubic root of 28590513 is about 305.7787605821.

The spelling of 28590513 in words is "twenty-eight million, five hundred ninety thousand, five hundred thirteen".