85189291 has 8 divisors (see below), whose sum is σ = 94054464. Its totient is φ = 76510920.

The previous prime is 85189289. The next prime is 85189297. The reversal of 85189291 is 19298158.

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 85189291 - 2¹ = 85189289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85189297) 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, 45741 + ... + 47566.

It is an arithmetic number, because the mean of its divisors is an integer number (11756808).

Almost surely, 2^85189291 is an apocalyptic number.

85189291 is a deficient number, since it is larger than the sum of its proper divisors (8865173).

85189291 is a wasteful number, since it uses less digits than its factorization.

85189291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93401.

The product of its digits is 51840, while the sum is 43.

The square root of 85189291 is about 9229.8044941375. The cubic root of 85189291 is about 440.0091096599.

The spelling of 85189291 in words is "eighty-five million, one hundred eighty-nine thousand, two hundred ninety-one".