85266743 has 2 divisors, whose sum is σ = 85266744. Its totient is φ = 85266742.

The previous prime is 85266739. The next prime is 85266761. The reversal of 85266743 is 34766258.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85266743 - 2² = 85266739 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85266743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85266703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42633371 + 42633372.

It is an arithmetic number, because the mean of its divisors is an integer number (42633372).

Almost surely, 2^85266743 is an apocalyptic number.

85266743 is a deficient number, since it is larger than the sum of its proper divisors (1).

85266743 is an equidigital number, since it uses as much as digits as its factorization.

85266743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 41.

The square root of 85266743 is about 9233.9992960797. Note that the first 3 decimals coincide. The cubic root of 85266743 is about 440.1424177407.

The spelling of 85266743 in words is "eighty-five million, two hundred sixty-six thousand, seven hundred forty-three".