28586029 has 4 divisors (see below), whose sum is σ = 28633276. Its totient is φ = 28538784.

The previous prime is 28586023. The next prime is 28586057. The reversal of 28586029 is 92068582.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2340900 + 26245129 = 1530^2 + 5123^2 .

It is a cyclic number.

It is not a de Polignac number, because 28586029 - 2³ = 28586021 is a prime.

It is a super-2 number, since 2×28586029² = 1634322107977682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28585982 and 28586000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28586021) 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 3 ways as a sum of consecutive naturals, for example, 22704 + ... + 23929.

It is an arithmetic number, because the mean of its divisors is an integer number (7158319).

Almost surely, 2^28586029 is an apocalyptic number.

It is an amenable number.

28586029 is a deficient number, since it is larger than the sum of its proper divisors (47247).

28586029 is an equidigital number, since it uses as much as digits as its factorization.

28586029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47246.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 28586029 is about 5346.5904088494. The cubic root of 28586029 is about 305.7627741178.

The spelling of 28586029 in words is "twenty-eight million, five hundred eighty-six thousand, twenty-nine".