85847107 has 2 divisors, whose sum is σ = 85847108. Its totient is φ = 85847106.

The previous prime is 85847089. The next prime is 85847123. The reversal of 85847107 is 70174858.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85847107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85847107.

It is not a weakly prime, because it can be changed into another prime (85847137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42923553 + 42923554.

It is an arithmetic number, because the mean of its divisors is an integer number (42923554).

Almost surely, 2^85847107 is an apocalyptic number.

85847107 is a deficient number, since it is larger than the sum of its proper divisors (1).

85847107 is an equidigital number, since it uses as much as digits as its factorization.

85847107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 85847107 is about 9265.3713902898. The cubic root of 85847107 is about 441.1387633798.

The spelling of 85847107 in words is "eighty-five million, eight hundred forty-seven thousand, one hundred seven".