85079919 has 8 divisors (see below), whose sum is σ = 114876160. Its totient is φ = 56001816.

The previous prime is 85079899. The next prime is 85079927. The reversal of 85079919 is 91997058.

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

It is not a de Polignac number, because 85079919 - 2⁷ = 85079791 is a prime.

It is a super-2 number, since 2×85079919² = 14477185234093122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85079119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179257 + ... + 179730.

It is an arithmetic number, because the mean of its divisors is an integer number (14359520).

Almost surely, 2^85079919 is an apocalyptic number.

85079919 is a deficient number, since it is larger than the sum of its proper divisors (29796241).

85079919 is a wasteful number, since it uses less digits than its factorization.

85079919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359069.

The product of its (nonzero) digits is 204120, while the sum is 48.

The square root of 85079919 is about 9223.8776553031. The cubic root of 85079919 is about 439.8207241412.

The spelling of 85079919 in words is "eighty-five million, seventy-nine thousand, nine hundred nineteen".