28960860 has 48 divisors (see below), whose sum is σ = 85863456. Its totient is φ = 7268352.

The previous prime is 28960859. The next prime is 28960871. The reversal of 28960860 is 6806982.

28960860 is nontrivially palindromic in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13177 + ... + 15216.

It is an arithmetic number, because the mean of its divisors is an integer number (1788822).

Almost surely, 2^28960860 is an apocalyptic number.

28960860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28960860 is an abundant number, since it is smaller than the sum of its proper divisors (56902596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28960860 is a wasteful number, since it uses less digits than its factorization.

28960860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28422 (or 28420 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 28960860 is about 5381.5295223570. The cubic root of 28960860 is about 307.0934013961.

The spelling of 28960860 in words is "twenty-eight million, nine hundred sixty thousand, eight hundred sixty".