85416679 has 2 divisors, whose sum is σ = 85416680. Its totient is φ = 85416678.

The previous prime is 85416677. The next prime is 85416689. The reversal of 85416679 is 97661458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85416679 - 2¹ = 85416677 is a prime.

Together with 85416677, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85416673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42708339 + 42708340.

It is an arithmetic number, because the mean of its divisors is an integer number (42708340).

Almost surely, 2^85416679 is an apocalyptic number.

85416679 is a deficient number, since it is larger than the sum of its proper divisors (1).

85416679 is an equidigital number, since it uses as much as digits as its factorization.

85416679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 85416679 is about 9242.1144225767. The cubic root of 85416679 is about 440.4002539044.

The spelling of 85416679 in words is "eighty-five million, four hundred sixteen thousand, six hundred seventy-nine".