28039853 has 2 divisors, whose sum is σ = 28039854. Its totient is φ = 28039852.

The previous prime is 28039819. The next prime is 28039861. The reversal of 28039853 is 35893082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16662724 + 11377129 = 4082^2 + 3373^2 .

It is a cyclic number.

It is not a de Polignac number, because 28039853 - 2¹⁴ = 28023469 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28039883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14019926 + 14019927.

It is an arithmetic number, because the mean of its divisors is an integer number (14019927).

Almost surely, 2^28039853 is an apocalyptic number.

It is an amenable number.

28039853 is a deficient number, since it is larger than the sum of its proper divisors (1).

28039853 is an equidigital number, since it uses as much as digits as its factorization.

28039853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 28039853 is about 5295.2670376479. The cubic root of 28039853 is about 303.8028969616.

The spelling of 28039853 in words is "twenty-eight million, thirty-nine thousand, eight hundred fifty-three".