28200650 has 12 divisors (see below), whose sum is σ = 52453302. Its totient is φ = 11280240.

The previous prime is 28200649. The next prime is 28200659. The reversal of 28200650 is 5600282.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 19562929 + 8637721 = 4423^2 + 2939^2 .

It is not an unprimeable number, because it can be changed into a prime (28200659) 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, 281957 + ... + 282056.

Almost surely, 2^28200650 is an apocalyptic number.

28200650 is a deficient number, since it is larger than the sum of its proper divisors (24252652).

28200650 is a wasteful number, since it uses less digits than its factorization.

28200650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564025 (or 564020 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 28200650 is about 5310.4284196287. The cubic root of 28200650 is about 304.3825185386.

The spelling of 28200650 in words is "twenty-eight million, two hundred thousand, six hundred fifty".