28738365 has 8 divisors (see below), whose sum is σ = 45981408. Its totient is φ = 15327120.

The previous prime is 28738363. The next prime is 28738397. The reversal of 28738365 is 56383782.

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

It is not a de Polignac number, because 28738365 - 2¹ = 28738363 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28738361) 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, 957931 + ... + 957960.

It is an arithmetic number, because the mean of its divisors is an integer number (5747676).

Almost surely, 2^28738365 is an apocalyptic number.

It is an amenable number.

28738365 is a deficient number, since it is larger than the sum of its proper divisors (17243043).

28738365 is a wasteful number, since it uses less digits than its factorization.

28738365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915899.

The product of its digits is 241920, while the sum is 42.

The square root of 28738365 is about 5360.8175682446. The cubic root of 28738365 is about 306.3049525157.

The spelling of 28738365 in words is "twenty-eight million, seven hundred thirty-eight thousand, three hundred sixty-five".