28567149 has 8 divisors (see below), whose sum is σ = 41019552. Its totient is φ = 17579760.

The previous prime is 28567129. The next prime is 28567169. The reversal of 28567149 is 94176582.

It is an interprime number because it is at equal distance from previous prime (28567129) and next prime (28567169).

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

It is not a de Polignac number, because 28567149 - 2⁸ = 28566893 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28567149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28567109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366207 + ... + 366284.

It is an arithmetic number, because the mean of its divisors is an integer number (5127444).

Almost surely, 2^28567149 is an apocalyptic number.

It is an amenable number.

28567149 is a deficient number, since it is larger than the sum of its proper divisors (12452403).

28567149 is a wasteful number, since it uses less digits than its factorization.

28567149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732507.

The product of its digits is 120960, while the sum is 42.

The square root of 28567149 is about 5344.8245060058. The cubic root of 28567149 is about 305.6954443446.

The spelling of 28567149 in words is "twenty-eight million, five hundred sixty-seven thousand, one hundred forty-nine".