28890053 has 2 divisors, whose sum is σ = 28890054. Its totient is φ = 28890052.

The previous prime is 28890031. The next prime is 28890067. The reversal of 28890053 is 35009882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20948929 + 7941124 = 4577^2 + 2818^2 .

It is a cyclic number.

It is not a de Polignac number, because 28890053 - 2⁶ = 28889989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28889995 and 28890022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28892053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14445026 + 14445027.

It is an arithmetic number, because the mean of its divisors is an integer number (14445027).

Almost surely, 2^28890053 is an apocalyptic number.

It is an amenable number.

28890053 is a deficient number, since it is larger than the sum of its proper divisors (1).

28890053 is an equidigital number, since it uses as much as digits as its factorization.

28890053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 28890053 is about 5374.9467904343. The cubic root of 28890053 is about 306.8429241697.

The spelling of 28890053 in words is "twenty-eight million, eight hundred ninety thousand, fifty-three".