28631235 has 8 divisors (see below), whose sum is σ = 45810000. Its totient is φ = 15269984.

The previous prime is 28631221. The next prime is 28631237. The reversal of 28631235 is 53213682.

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 28631235 - 2⁵ = 28631203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28631237) 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, 954360 + ... + 954389.

It is an arithmetic number, because the mean of its divisors is an integer number (5726250).

Almost surely, 2^28631235 is an apocalyptic number.

28631235 is a deficient number, since it is larger than the sum of its proper divisors (17178765).

28631235 is a wasteful number, since it uses less digits than its factorization.

28631235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908757.

The product of its digits is 8640, while the sum is 30.

The square root of 28631235 is about 5350.8162928660. The cubic root of 28631235 is about 305.9238671719.

The spelling of 28631235 in words is "twenty-eight million, six hundred thirty-one thousand, two hundred thirty-five".