28661053 has 2 divisors, whose sum is σ = 28661054. Its totient is φ = 28661052.

The previous prime is 28661029. The next prime is 28661057. The reversal of 28661053 is 35016682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21548164 + 7112889 = 4642^2 + 2667^2 .

It is a cyclic number.

It is not a de Polignac number, because 28661053 - 2⁵ = 28661021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28661057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14330526 + 14330527.

It is an arithmetic number, because the mean of its divisors is an integer number (14330527).

Almost surely, 2^28661053 is an apocalyptic number.

It is an amenable number.

28661053 is a deficient number, since it is larger than the sum of its proper divisors (1).

28661053 is an equidigital number, since it uses as much as digits as its factorization.

28661053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 28661053 is about 5353.6018716374. The cubic root of 28661053 is about 306.0300317970.

The spelling of 28661053 in words is "twenty-eight million, six hundred sixty-one thousand, fifty-three".