85991402 has 8 divisors (see below), whose sum is σ = 147413856. Its totient is φ = 36853452.

The previous prime is 85991401. The next prime is 85991417. The reversal of 85991402 is 20419958.

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

It is not an unprimeable number, because it can be changed into a prime (85991401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3071108 + ... + 3071135.

It is an arithmetic number, because the mean of its divisors is an integer number (18426732).

Almost surely, 2^85991402 is an apocalyptic number.

85991402 is a deficient number, since it is larger than the sum of its proper divisors (61422454).

85991402 is a wasteful number, since it uses less digits than its factorization.

85991402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6142252.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 85991402 is about 9273.1549108165. The cubic root of 85991402 is about 441.3857858258.

It can be divided in two parts, 8599 and 1402, that added together give a palindrome (10001).

The spelling of 85991402 in words is "eighty-five million, nine hundred ninety-one thousand, four hundred two".