28586149 has 8 divisors (see below), whose sum is σ = 29161440. Its totient is φ = 28014000.

The previous prime is 28586137. The next prime is 28586167. The reversal of 28586149 is 94168582.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28586149 - 2⁷ = 28586021 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 (28586119) 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, 26674 + ... + 27724.

It is an arithmetic number, because the mean of its divisors is an integer number (3645180).

Almost surely, 2^28586149 is an apocalyptic number.

It is an amenable number.

28586149 is a deficient number, since it is larger than the sum of its proper divisors (575291).

28586149 is a wasteful number, since it uses less digits than its factorization.

28586149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571.

The product of its digits is 138240, while the sum is 43.

The square root of 28586149 is about 5346.6016309428. The cubic root of 28586149 is about 305.7632019664.

The spelling of 28586149 in words is "twenty-eight million, five hundred eighty-six thousand, one hundred forty-nine".