85890917 has 8 divisors (see below), whose sum is σ = 98878656. Its totient is φ = 73082592.

The previous prime is 85890913. The next prime is 85890923. The reversal of 85890917 is 71909858.

It is a happy number.

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 85890917 - 2² = 85890913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85890913) 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, 43823 + ... + 45740.

It is an arithmetic number, because the mean of its divisors is an integer number (12359832).

Almost surely, 2^85890917 is an apocalyptic number.

It is an amenable number.

85890917 is a deficient number, since it is larger than the sum of its proper divisors (12987739).

85890917 is a wasteful number, since it uses less digits than its factorization.

85890917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89707.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 85890917 is about 9267.7352681224. The cubic root of 85890917 is about 441.2137921267.

The spelling of 85890917 in words is "eighty-five million, eight hundred ninety thousand, nine hundred seventeen".