85704419 has 4 divisors (see below), whose sum is σ = 86667480. Its totient is φ = 84741360.

The previous prime is 85704413. The next prime is 85704433. The reversal of 85704419 is 91440758.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85704419 - 2⁸ = 85704163 is a prime.

It is a super-2 number, since 2×85704419² = 14690494872255122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85704413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481397 + ... + 481574.

It is an arithmetic number, because the mean of its divisors is an integer number (21666870).

Almost surely, 2^85704419 is an apocalyptic number.

85704419 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

85704419 is a deficient number, since it is larger than the sum of its proper divisors (963061).

85704419 is an equidigital number, since it uses as much as digits as its factorization.

85704419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963060.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 85704419 is about 9257.6681189163. The cubic root of 85704419 is about 440.8942196538.

The spelling of 85704419 in words is "eighty-five million, seven hundred four thousand, four hundred nineteen".