85297183 has 2 divisors, whose sum is σ = 85297184. Its totient is φ = 85297182.

The previous prime is 85297181. The next prime is 85297189. The reversal of 85297183 is 38179258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85297183 - 2¹ = 85297181 is a prime.

Together with 85297181, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85297181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42648591 + 42648592.

It is an arithmetic number, because the mean of its divisors is an integer number (42648592).

Almost surely, 2^85297183 is an apocalyptic number.

85297183 is a deficient number, since it is larger than the sum of its proper divisors (1).

85297183 is an equidigital number, since it uses as much as digits as its factorization.

85297183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The square root of 85297183 is about 9235.6474055694. The cubic root of 85297183 is about 440.1947880659.

The spelling of 85297183 in words is "eighty-five million, two hundred ninety-seven thousand, one hundred eighty-three".