28630153 has 4 divisors (see below), whose sum is σ = 28992640. Its totient is φ = 28267668.

The previous prime is 28630141. The next prime is 28630157. The reversal of 28630153 is 35103682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35103682 = 2 ⋅17551841.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28630153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28630157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181125 + ... + 181282.

It is an arithmetic number, because the mean of its divisors is an integer number (7248160).

Almost surely, 2^28630153 is an apocalyptic number.

It is an amenable number.

28630153 is a deficient number, since it is larger than the sum of its proper divisors (362487).

28630153 is an equidigital number, since it uses as much as digits as its factorization.

28630153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362486.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 28630153 is about 5350.7151858420. The cubic root of 28630153 is about 305.9200134111.

The spelling of 28630153 in words is "twenty-eight million, six hundred thirty thousand, one hundred fifty-three".