28860700 has 36 divisors (see below), whose sum is σ = 68323752. Its totient is φ = 10494400.

The previous prime is 28860691. The next prime is 28860731. The reversal of 28860700 is 706882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12019 + ... + 14218.

It is an arithmetic number, because the mean of its divisors is an integer number (1897882).

Almost surely, 2^28860700 is an apocalyptic number.

28860700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28860700 is an abundant number, since it is smaller than the sum of its proper divisors (39463052).

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

28860700 is a wasteful number, since it uses less digits than its factorization.

28860700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26262 (or 26255 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 28860700 is about 5372.2155578495. The cubic root of 28860700 is about 306.7389689844.

The spelling of 28860700 in words is "twenty-eight million, eight hundred sixty thousand, seven hundred".