28959523 has 2 divisors, whose sum is σ = 28959524. Its totient is φ = 28959522.

The previous prime is 28959503. The next prime is 28959533. The reversal of 28959523 is 32595982.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28959523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28959523.

It is not a weakly prime, because it can be changed into another prime (28959503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14479761 + 14479762.

It is an arithmetic number, because the mean of its divisors is an integer number (14479762).

Almost surely, 2^28959523 is an apocalyptic number.

28959523 is a deficient number, since it is larger than the sum of its proper divisors (1).

28959523 is an equidigital number, since it uses as much as digits as its factorization.

28959523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The square root of 28959523 is about 5381.4052997335. The cubic root of 28959523 is about 307.0886755904.

The spelling of 28959523 in words is "twenty-eight million, nine hundred fifty-nine thousand, five hundred twenty-three".