28960855 has 16 divisors (see below), whose sum is σ = 43329024. Its totient is φ = 18053280.

The previous prime is 28960853. The next prime is 28960859. The reversal of 28960855 is 55806982.

It is not a de Polignac number, because 28960855 - 2¹ = 28960853 is a prime.

It is a super-2 number, since 2×28960855² = 1677462244662050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28960853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37227 + ... + 37996.

It is an arithmetic number, because the mean of its divisors is an integer number (2708064).

Almost surely, 2^28960855 is an apocalyptic number.

28960855 is a deficient number, since it is larger than the sum of its proper divisors (14368169).

28960855 is a wasteful number, since it uses less digits than its factorization.

28960855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75246.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 28960855 is about 5381.5290578050. The cubic root of 28960855 is about 307.0933837232.

The spelling of 28960855 in words is "twenty-eight million, nine hundred sixty thousand, eight hundred fifty-five".