28983641 has 2 divisors, whose sum is σ = 28983642. Its totient is φ = 28983640.

The previous prime is 28983571. The next prime is 28983649. The reversal of 28983641 is 14638982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23319241 + 5664400 = 4829^2 + 2380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28983641 is a prime.

It is not a weakly prime, because it can be changed into another prime (28983649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14491820 + 14491821.

It is an arithmetic number, because the mean of its divisors is an integer number (14491821).

Almost surely, 2^28983641 is an apocalyptic number.

It is an amenable number.

28983641 is a deficient number, since it is larger than the sum of its proper divisors (1).

28983641 is an equidigital number, since it uses as much as digits as its factorization.

28983641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 28983641 is about 5383.6456978520. The cubic root of 28983641 is about 307.1739015519.

The spelling of 28983641 in words is "twenty-eight million, nine hundred eighty-three thousand, six hundred forty-one".