28397485 has 8 divisors (see below), whose sum is σ = 34106976. Its totient is φ = 22698000.

The previous prime is 28397449. The next prime is 28397507. The reversal of 28397485 is 58479382.

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

It is not a de Polignac number, because 28397485 - 2⁷ = 28397357 is a prime.

It is a Duffinian number.

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, 7110 + ... + 10360.

It is an arithmetic number, because the mean of its divisors is an integer number (4263372).

Almost surely, 2^28397485 is an apocalyptic number.

It is an amenable number.

28397485 is a deficient number, since it is larger than the sum of its proper divisors (5709491).

28397485 is a wasteful number, since it uses less digits than its factorization.

28397485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003.

The product of its digits is 483840, while the sum is 46.

The square root of 28397485 is about 5328.9290668951. The cubic root of 28397485 is about 305.0890539919.

It can be divided in two parts, 28397 and 485, that added together give a palindrome (28882).

The spelling of 28397485 in words is "twenty-eight million, three hundred ninety-seven thousand, four hundred eighty-five".