28135433 has 2 divisors, whose sum is σ = 28135434. Its totient is φ = 28135432.

The previous prime is 28135427. The next prime is 28135439. The reversal of 28135433 is 33453182.

It is a balanced prime because it is at equal distance from previous prime (28135427) and next prime (28135439).

It can be written as a sum of positive squares in only one way, i.e., 20720704 + 7414729 = 4552^2 + 2723^2 .

It is a cyclic number.

It is not a de Polignac number, because 28135433 - 2⁶ = 28135369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28135396 and 28135405.

It is not a weakly prime, because it can be changed into another prime (28135439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14067716 + 14067717.

It is an arithmetic number, because the mean of its divisors is an integer number (14067717).

Almost surely, 2^28135433 is an apocalyptic number.

It is an amenable number.

28135433 is a deficient number, since it is larger than the sum of its proper divisors (1).

28135433 is an equidigital number, since it uses as much as digits as its factorization.

28135433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 28135433 is about 5304.2844003692. The cubic root of 28135433 is about 304.1476984564.

The spelling of 28135433 in words is "twenty-eight million, one hundred thirty-five thousand, four hundred thirty-three".