28998850 has 24 divisors (see below), whose sum is σ = 54129348. Its totient is φ = 11558400.

The previous prime is 28998847. The next prime is 28998911. The reversal of 28998850 is 5889982.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 10569001 + 18429849 = 3251^2 + 4293^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28998794 and 28998803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15990 + ... + 17710.

Almost surely, 2^28998850 is an apocalyptic number.

28998850 is a deficient number, since it is larger than the sum of its proper divisors (25130498).

28998850 is a wasteful number, since it uses less digits than its factorization.

28998850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 49.

The square root of 28998850 is about 5385.0580312565. The cubic root of 28998850 is about 307.2276214065.

The spelling of 28998850 in words is "twenty-eight million, nine hundred ninety-eight thousand, eight hundred fifty".