28146365 has 32 divisors (see below), whose sum is σ = 38658816. Its totient is φ = 19514880.

The previous prime is 28146359. The next prime is 28146367. The reversal of 28146365 is 56364182.

It is not a de Polignac number, because 28146365 - 2⁶ = 28146301 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 (28146367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100025 + ... + 100305.

It is an arithmetic number, because the mean of its divisors is an integer number (1208088).

Almost surely, 2^28146365 is an apocalyptic number.

It is an amenable number.

28146365 is a deficient number, since it is larger than the sum of its proper divisors (10512451).

28146365 is a wasteful number, since it uses less digits than its factorization.

28146365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389.

The product of its digits is 34560, while the sum is 35.

The square root of 28146365 is about 5305.3147880215. The cubic root of 28146365 is about 304.1870854706.

The spelling of 28146365 in words is "twenty-eight million, one hundred forty-six thousand, three hundred sixty-five".