28343085 has 8 divisors (see below), whose sum is σ = 45348960. Its totient is φ = 15116304.

The previous prime is 28343071. The next prime is 28343087. The reversal of 28343085 is 58034382.

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

It is not a de Polignac number, because 28343085 - 2⁷ = 28342957 is a prime.

It is a super-4 number, since 4×28343085⁴ (a number of 31 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28343087) 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, 944755 + ... + 944784.

It is an arithmetic number, because the mean of its divisors is an integer number (5668620).

Almost surely, 2^28343085 is an apocalyptic number.

It is an amenable number.

28343085 is a deficient number, since it is larger than the sum of its proper divisors (17005875).

28343085 is a wasteful number, since it uses less digits than its factorization.

28343085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889547.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 28343085 is about 5323.8224050019. The cubic root of 28343085 is about 304.8941135618.

The spelling of 28343085 in words is "twenty-eight million, three hundred forty-three thousand, eighty-five".