28863550 has 12 divisors (see below), whose sum is σ = 53686296. Its totient is φ = 11545400.

The previous prime is 28863547. The next prime is 28863563. The reversal of 28863550 is 5536882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 288586 + ... + 288685.

It is an arithmetic number, because the mean of its divisors is an integer number (4473858).

Almost surely, 2^28863550 is an apocalyptic number.

28863550 is a deficient number, since it is larger than the sum of its proper divisors (24822746).

28863550 is a wasteful number, since it uses less digits than its factorization.

28863550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577283 (or 577278 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 28863550 is about 5372.4808049913. The cubic root of 28863550 is about 306.7490654973.

The spelling of 28863550 in words is "twenty-eight million, eight hundred sixty-three thousand, five hundred fifty".