28383497 has 2 divisors, whose sum is σ = 28383498. Its totient is φ = 28383496.

The previous prime is 28383469. The next prime is 28383503. The reversal of 28383497 is 79438382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27081616 + 1301881 = 5204^2 + 1141^2 .

It is a cyclic number.

It is not a de Polignac number, because 28383497 - 2²⁰ = 27334921 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28383437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14191748 + 14191749.

It is an arithmetic number, because the mean of its divisors is an integer number (14191749).

Almost surely, 2^28383497 is an apocalyptic number.

It is an amenable number.

28383497 is a deficient number, since it is larger than the sum of its proper divisors (1).

28383497 is an equidigital number, since it uses as much as digits as its factorization.

28383497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The square root of 28383497 is about 5327.6164464045. The cubic root of 28383497 is about 305.0389522946.

The spelling of 28383497 in words is "twenty-eight million, three hundred eighty-three thousand, four hundred ninety-seven".