85394019 has 8 divisors (see below), whose sum is σ = 113909760. Its totient is φ = 56903816.

The previous prime is 85394003. The next prime is 85394033. The reversal of 85394019 is 91049358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85394019 - 2⁴ = 85394003 is a prime.

It is a super-2 number, since 2×85394019² = 14584276961944722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85392019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3694 + ... + 13580.

It is an arithmetic number, because the mean of its divisors is an integer number (14238720).

Almost surely, 2^85394019 is an apocalyptic number.

85394019 is a deficient number, since it is larger than the sum of its proper divisors (28515741).

85394019 is a wasteful number, since it uses less digits than its factorization.

85394019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12769.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 85394019 is about 9240.8884313144. Note that the first 3 decimals coincide. The cubic root of 85394019 is about 440.3613061935.

The spelling of 85394019 in words is "eighty-five million, three hundred ninety-four thousand, nineteen".