28035601 has 12 divisors (see below), whose sum is σ = 32492880. Its totient is φ = 23984960.

The previous prime is 28035589. The next prime is 28035611. The reversal of 28035601 is 10653082.

It is a happy number.

It is not a de Polignac number, because 28035601 - 2⁷ = 28035473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28035611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1231 + ... + 7588.

It is an arithmetic number, because the mean of its divisors is an integer number (2707740).

Almost surely, 2^28035601 is an apocalyptic number.

It is an amenable number.

28035601 is a deficient number, since it is larger than the sum of its proper divisors (4457279).

28035601 is a wasteful number, since it uses less digits than its factorization.

28035601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8864 (or 8847 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 28035601 is about 5294.8655318148. The cubic root of 28035601 is about 303.7875398291.

Adding to 28035601 its reverse (10653082), we get a palindrome (38688683).

The spelling of 28035601 in words is "twenty-eight million, thirty-five thousand, six hundred one".