85174783 has 2 divisors, whose sum is σ = 85174784. Its totient is φ = 85174782.

The previous prime is 85174757. The next prime is 85174813. The reversal of 85174783 is 38747158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85174783 - 2¹⁷ = 85043711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85172783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42587391 + 42587392.

It is an arithmetic number, because the mean of its divisors is an integer number (42587392).

Almost surely, 2^85174783 is an apocalyptic number.

85174783 is a deficient number, since it is larger than the sum of its proper divisors (1).

85174783 is an equidigital number, since it uses as much as digits as its factorization.

85174783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 43.

The square root of 85174783 is about 9229.0185285327. The cubic root of 85174783 is about 439.9841299372.

The spelling of 85174783 in words is "eighty-five million, one hundred seventy-four thousand, seven hundred eighty-three".