28531035 has 40 divisors (see below), whose sum is σ = 55088880. Its totient is φ = 14043456.

The previous prime is 28530979. The next prime is 28531051. The reversal of 28531035 is 53013582.

It is not a de Polignac number, because 28531035 - 2¹⁶ = 28465499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2556 + ... + 7974.

It is an arithmetic number, because the mean of its divisors is an integer number (1377222).

Almost surely, 2^28531035 is an apocalyptic number.

28531035 is a deficient number, since it is larger than the sum of its proper divisors (26557845).

28531035 is a wasteful number, since it uses less digits than its factorization.

28531035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5449 (or 5440 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 28531035 is about 5341.4450292032. The cubic root of 28531035 is about 305.5665720668.

The spelling of 28531035 in words is "twenty-eight million, five hundred thirty-one thousand, thirty-five".