85204719 has 12 divisors (see below), whose sum is σ = 128424816. Its totient is φ = 54333312.

The previous prime is 85204699. The next prime is 85204723. The reversal of 85204719 is 91740258.

It is not a de Polignac number, because 85204719 - 2⁵ = 85204687 is a prime.

It is a super-2 number, since 2×85204719² = 14519688279737922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85204219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205602 + ... + 206015.

It is an arithmetic number, because the mean of its divisors is an integer number (10702068).

Almost surely, 2^85204719 is an apocalyptic number.

85204719 is a deficient number, since it is larger than the sum of its proper divisors (43220097).

85204719 is a wasteful number, since it uses less digits than its factorization.

85204719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411646 (or 411643 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 85204719 is about 9230.6402269832. The cubic root of 85204719 is about 440.0356703175.

The spelling of 85204719 in words is "eighty-five million, two hundred four thousand, seven hundred nineteen".