28153841 has 2 divisors, whose sum is σ = 28153842. Its totient is φ = 28153840.

The previous prime is 28153831. The next prime is 28153889. The reversal of 28153841 is 14835182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28143025 + 10816 = 5305^2 + 104^2 .

It is a cyclic number.

It is not a de Polignac number, because 28153841 - 2¹⁸ = 27891697 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28153798 and 28153807.

It is not a weakly prime, because it can be changed into another prime (28153831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14076920 + 14076921.

It is an arithmetic number, because the mean of its divisors is an integer number (14076921).

Almost surely, 2^28153841 is an apocalyptic number.

It is an amenable number.

28153841 is a deficient number, since it is larger than the sum of its proper divisors (1).

28153841 is an equidigital number, since it uses as much as digits as its factorization.

28153841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 32.

The square root of 28153841 is about 5306.0193177183. The cubic root of 28153841 is about 304.2140149556.

The spelling of 28153841 in words is "twenty-eight million, one hundred fifty-three thousand, eight hundred forty-one".