85235691 has 8 divisors (see below), whose sum is σ = 119629120. Its totient is φ = 53833032.

The previous prime is 85235663. The next prime is 85235699. The reversal of 85235691 is 19653258.

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

It is not a de Polignac number, because 85235691 - 2⁵ = 85235659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85235699) 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, 747625 + ... + 747738.

It is an arithmetic number, because the mean of its divisors is an integer number (14953640).

Almost surely, 2^85235691 is an apocalyptic number.

85235691 is a deficient number, since it is larger than the sum of its proper divisors (34393429).

85235691 is a wasteful number, since it uses less digits than its factorization.

85235691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495385.

The product of its digits is 64800, while the sum is 39.

The square root of 85235691 is about 9232.3177479981. The cubic root of 85235691 is about 440.0889816596.

The spelling of 85235691 in words is "eighty-five million, two hundred thirty-five thousand, six hundred ninety-one".