28486149 has 24 divisors (see below), whose sum is σ = 41513760. Its totient is φ = 17351712.

The previous prime is 28486147. The next prime is 28486151. The reversal of 28486149 is 94168482.

It is an interprime number because it is at equal distance from previous prime (28486147) and next prime (28486151).

It is not a de Polignac number, because 28486149 - 2¹ = 28486147 is a prime.

It is a super-2 number, since 2×28486149² = 1622921369700402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28486149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28486147) 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 23 ways as a sum of consecutive naturals, for example, 30954 + ... + 31860.

It is an arithmetic number, because the mean of its divisors is an integer number (1729740).

Almost surely, 2^28486149 is an apocalyptic number.

28486149 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

28486149 is a deficient number, since it is larger than the sum of its proper divisors (13027611).

28486149 is a wasteful number, since it uses less digits than its factorization.

28486149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977 (or 958 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 28486149 is about 5337.2417033520. The cubic root of 28486149 is about 305.4062453665.

The spelling of 28486149 in words is "twenty-eight million, four hundred eighty-six thousand, one hundred forty-nine".