85591646 has 8 divisors (see below), whose sum is σ = 146728560. Its totient is φ = 36682128.

The previous prime is 85591643. The next prime is 85591687. The reversal of 85591646 is 64619558.

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

It is a junction number, because it is equal to n+sod(n) for n = 85591597 and 85591606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85591643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3056831 + ... + 3056858.

It is an arithmetic number, because the mean of its divisors is an integer number (18341070).

Almost surely, 2^85591646 is an apocalyptic number.

85591646 is a deficient number, since it is larger than the sum of its proper divisors (61136914).

85591646 is a wasteful number, since it uses less digits than its factorization.

85591646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6113698.

The product of its digits is 259200, while the sum is 44.

The square root of 85591646 is about 9251.5753253162. The cubic root of 85591646 is about 440.7007532080.

The spelling of 85591646 in words is "eighty-five million, five hundred ninety-one thousand, six hundred forty-six".