28046365 has 8 divisors (see below), whose sum is σ = 33765048. Its totient is φ = 22364160.

The previous prime is 28046353. The next prime is 28046371. The reversal of 28046365 is 56364082.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3583449 + 24462916 = 1893^2 + 4946^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-28046365 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28046365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7396 + ... + 10525.

It is an arithmetic number, because the mean of its divisors is an integer number (4220631).

Almost surely, 2^28046365 is an apocalyptic number.

It is an amenable number.

28046365 is a deficient number, since it is larger than the sum of its proper divisors (5718683).

28046365 is a wasteful number, since it uses less digits than its factorization.

28046365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18239.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 28046365 is about 5295.8818906769. The cubic root of 28046365 is about 303.8264136248.

The spelling of 28046365 in words is "twenty-eight million, forty-six thousand, three hundred sixty-five".