28636700 has 18 divisors (see below), whose sum is σ = 62141856. Its totient is φ = 11454640.

The previous prime is 28636693. The next prime is 28636703. The reversal of 28636700 is 763682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28636703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143084 + ... + 143283.

Almost surely, 2^28636700 is an apocalyptic number.

28636700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28636700 is an abundant number, since it is smaller than the sum of its proper divisors (33505156).

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

28636700 is a wasteful number, since it uses less digits than its factorization.

28636700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286381 (or 286374 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 28636700 is about 5351.3269382463. The cubic root of 28636700 is about 305.9433303860.

The spelling of 28636700 in words is "twenty-eight million, six hundred thirty-six thousand, seven hundred".