85219867 has 8 divisors (see below), whose sum is σ = 86886800. Its totient is φ = 83561760.

The previous prime is 85219859. The next prime is 85219877. The reversal of 85219867 is 76891258.

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 85219867 - 2³ = 85219859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85219817) 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, 19288 + ... + 23290.

It is an arithmetic number, because the mean of its divisors is an integer number (10860850).

Almost surely, 2^85219867 is an apocalyptic number.

85219867 is a deficient number, since it is larger than the sum of its proper divisors (1666933).

85219867 is a wasteful number, since it uses less digits than its factorization.

85219867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413.

The product of its digits is 241920, while the sum is 46.

The square root of 85219867 is about 9231.4607186512. The cubic root of 85219867 is about 440.0617458113.

The spelling of 85219867 in words is "eighty-five million, two hundred nineteen thousand, eight hundred sixty-seven".