28235031 has 8 divisors (see below), whose sum is σ = 41069184. Its totient is φ = 17112120.

The previous prime is 28235029. The next prime is 28235059. The reversal of 28235031 is 13053282.

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

It is not a de Polignac number, because 28235031 - 2¹ = 28235029 is a prime.

It is a super-2 number, since 2×28235031² = 1594433951141922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28234992 and 28235010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28235071) 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, 427771 + ... + 427836.

It is an arithmetic number, because the mean of its divisors is an integer number (5133648).

Almost surely, 2^28235031 is an apocalyptic number.

28235031 is a deficient number, since it is larger than the sum of its proper divisors (12834153).

28235031 is a wasteful number, since it uses less digits than its factorization.

28235031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855621.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 28235031 is about 5313.6645547117. The cubic root of 28235031 is about 304.5061649254.

The spelling of 28235031 in words is "twenty-eight million, two hundred thirty-five thousand, thirty-one".