28590471 has 36 divisors (see below), whose sum is σ = 51745512. Its totient is φ = 15077664.

The previous prime is 28590461. The next prime is 28590487. The reversal of 28590471 is 17409582.

28590471 is a `hidden beast` number, since 28 + 590 + 47 + 1 = 666.

It is not a de Polignac number, because 28590471 - 2⁷ = 28590343 is a prime.

It is a super-3 number, since 3×28590471³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28590451) 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 35 ways as a sum of consecutive naturals, for example, 3240 + ... + 8226.

Almost surely, 2^28590471 is an apocalyptic number.

28590471 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

28590471 is a deficient number, since it is larger than the sum of its proper divisors (23155041).

28590471 is a wasteful number, since it uses less digits than its factorization.

28590471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020 (or 5010 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 28590471 is about 5347.0057976404. The cubic root of 28590471 is about 305.7786108504.

The spelling of 28590471 in words is "twenty-eight million, five hundred ninety thousand, four hundred seventy-one".