28301601 has 8 divisors (see below), whose sum is σ = 37818144. Its totient is φ = 18826400.

The previous prime is 28301591. The next prime is 28301627. The reversal of 28301601 is 10610382.

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

It is a cyclic number.

It is not a de Polignac number, because 28301601 - 2¹⁴ = 28285217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28301681) 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, 8700 + ... + 11501.

It is an arithmetic number, because the mean of its divisors is an integer number (4727268).

Almost surely, 2^28301601 is an apocalyptic number.

It is an amenable number.

28301601 is a deficient number, since it is larger than the sum of its proper divisors (9516543).

28301601 is a wasteful number, since it uses less digits than its factorization.

28301601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20671.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 28301601 is about 5319.9249054850. The cubic root of 28301601 is about 304.7452894514.

Adding to 28301601 its reverse (10610382), we get a palindrome (38911983).

The spelling of 28301601 in words is "twenty-eight million, three hundred one thousand, six hundred one".