28959530 has 64 divisors (see below), whose sum is σ = 57915648. Its totient is φ = 10391040.

The previous prime is 28959523. The next prime is 28959533. The reversal of 28959530 is 3595982.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (28959533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 348869 + ... + 348951.

It is an arithmetic number, because the mean of its divisors is an integer number (904932).

Almost surely, 2^28959530 is an apocalyptic number.

28959530 is a deficient number, since it is larger than the sum of its proper divisors (28956118).

28959530 is a wasteful number, since it uses less digits than its factorization.

28959530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 28959530 is about 5381.4059501212. The cubic root of 28959530 is about 307.0887003332.

The spelling of 28959530 in words is "twenty-eight million, nine hundred fifty-nine thousand, five hundred thirty".