85440763 has 2 divisors, whose sum is σ = 85440764. Its totient is φ = 85440762.

The previous prime is 85440749. The next prime is 85440767. The reversal of 85440763 is 36704458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85440763 - 2⁵ = 85440731 is a prime.

It is not a weakly prime, because it can be changed into another prime (85440767) 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, 42720381 + 42720382.

It is an arithmetic number, because the mean of its divisors is an integer number (42720382).

Almost surely, 2^85440763 is an apocalyptic number.

85440763 is a deficient number, since it is larger than the sum of its proper divisors (1).

85440763 is an equidigital number, since it uses as much as digits as its factorization.

85440763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 85440763 is about 9243.4172793399. The cubic root of 85440763 is about 440.4416416174.

The spelling of 85440763 in words is "eighty-five million, four hundred forty thousand, seven hundred sixty-three".