28347141 has 8 divisors (see below), whose sum is σ = 38314240. Its totient is φ = 18639072.

The previous prime is 28347139. The next prime is 28347173. The reversal of 28347141 is 14174382.

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

It is not a de Polignac number, because 28347141 - 2¹ = 28347139 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28347099 and 28347108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28347131) 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, 64501 + ... + 64938.

It is an arithmetic number, because the mean of its divisors is an integer number (4789280).

Almost surely, 2^28347141 is an apocalyptic number.

It is an amenable number.

28347141 is a deficient number, since it is larger than the sum of its proper divisors (9967099).

28347141 is a wasteful number, since it uses less digits than its factorization.

28347141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129515.

The product of its digits is 5376, while the sum is 30.

The square root of 28347141 is about 5324.2033206856. The cubic root of 28347141 is about 304.9086566922.

The spelling of 28347141 in words is "twenty-eight million, three hundred forty-seven thousand, one hundred forty-one".