28616141 has 2 divisors, whose sum is σ = 28616142. Its totient is φ = 28616140.

The previous prime is 28616129. The next prime is 28616143. The reversal of 28616141 is 14161682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26739241 + 1876900 = 5171^2 + 1370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28616141 is a prime.

Together with 28616143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28616143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14308070 + 14308071.

It is an arithmetic number, because the mean of its divisors is an integer number (14308071).

Almost surely, 2^28616141 is an apocalyptic number.

It is an amenable number.

28616141 is a deficient number, since it is larger than the sum of its proper divisors (1).

28616141 is an equidigital number, since it uses as much as digits as its factorization.

28616141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 29.

The square root of 28616141 is about 5349.4056679224. The cubic root of 28616141 is about 305.8700980798.

The spelling of 28616141 in words is "twenty-eight million, six hundred sixteen thousand, one hundred forty-one".