28964550 has 48 divisors (see below), whose sum is σ = 75620160. Its totient is φ = 7316640.

The previous prime is 28964543. The next prime is 28964563. The reversal of 28964550 is 5546982.

It is a junction number, because it is equal to n+sod(n) for n = 28964499 and 28964508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2232 + ... + 7931.

It is an arithmetic number, because the mean of its divisors is an integer number (1575420).

Almost surely, 2^28964550 is an apocalyptic number.

28964550 is an abundant number, since it is smaller than the sum of its proper divisors (46655610).

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

28964550 is a wasteful number, since it uses less digits than its factorization.

28964550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10197 (or 10192 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 28964550 is about 5381.8723507716. The cubic root of 28964550 is about 307.1064434412.

The spelling of 28964550 in words is "twenty-eight million, nine hundred sixty-four thousand, five hundred fifty".