85981386 has 8 divisors (see below), whose sum is σ = 171962784. Its totient is φ = 28660460.

The previous prime is 85981331. The next prime is 85981411. The reversal of 85981386 is 68318958.

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

85981386 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7165110 + ... + 7165121.

It is an arithmetic number, because the mean of its divisors is an integer number (21495348).

Almost surely, 2^85981386 is an apocalyptic number.

85981386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85981386 is a wasteful number, since it uses less digits than its factorization.

85981386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14330236.

The product of its digits is 414720, while the sum is 48.

The square root of 85981386 is about 9272.6148415644. The cubic root of 85981386 is about 441.3686480981.

The spelling of 85981386 in words is "eighty-five million, nine hundred eighty-one thousand, three hundred eighty-six".