85841699 has 2 divisors, whose sum is σ = 85841700. Its totient is φ = 85841698.

The previous prime is 85841663. The next prime is 85841729. The reversal of 85841699 is 99614858.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85841699 - 2²⁴ = 69064483 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (85841629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42920849 + 42920850.

It is an arithmetic number, because the mean of its divisors is an integer number (42920850).

Almost surely, 2^85841699 is an apocalyptic number.

85841699 is a deficient number, since it is larger than the sum of its proper divisors (1).

85841699 is an equidigital number, since it uses as much as digits as its factorization.

85841699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 50.

The square root of 85841699 is about 9265.0795463396. The cubic root of 85841699 is about 441.1294999011.

The spelling of 85841699 in words is "eighty-five million, eight hundred forty-one thousand, six hundred ninety-nine".