28955017 has 16 divisors (see below), whose sum is σ = 36247680. Its totient is φ = 22516992.

The previous prime is 28955009. The next prime is 28955041. The reversal of 28955017 is 71055982.

It is a cyclic number.

It is not a de Polignac number, because 28955017 - 2³ = 28955009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28955077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2673 + ... + 8065.

It is an arithmetic number, because the mean of its divisors is an integer number (2265480).

Almost surely, 2^28955017 is an apocalyptic number.

It is an amenable number.

28955017 is a deficient number, since it is larger than the sum of its proper divisors (7292663).

28955017 is a wasteful number, since it uses less digits than its factorization.

28955017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5472.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 28955017 is about 5380.9866195708. The cubic root of 28955017 is about 307.0727474580.

The spelling of 28955017 in words is "twenty-eight million, nine hundred fifty-five thousand, seventeen".