28361607 has 8 divisors (see below), whose sum is σ = 37982976. Its totient is φ = 18823992.

The previous prime is 28361587. The next prime is 28361629. The reversal of 28361607 is 70616382.

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

It is not a de Polignac number, because 28361607 - 2¹⁶ = 28296071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28321607) 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, 20143 + ... + 21504.

It is an arithmetic number, because the mean of its divisors is an integer number (4747872).

Almost surely, 2^28361607 is an apocalyptic number.

28361607 is a deficient number, since it is larger than the sum of its proper divisors (9621369).

28361607 is a wasteful number, since it uses less digits than its factorization.

28361607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41877.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 28361607 is about 5325.5616605199. The cubic root of 28361607 is about 304.9605144620.

Adding to 28361607 its reverse (70616382), we get a palindrome (98977989).

The spelling of 28361607 in words is "twenty-eight million, three hundred sixty-one thousand, six hundred seven".