85001623 has 6 divisors (see below), whose sum is σ = 98879496. Its totient is φ = 72858492.

The previous prime is 85001591. The next prime is 85001633. The reversal of 85001623 is 32610058.

It is a happy number.

It is not a de Polignac number, because 85001623 - 2⁵ = 85001591 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 (85001633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 867315 + ... + 867412.

It is an arithmetic number, because the mean of its divisors is an integer number (16479916).

Almost surely, 2^85001623 is an apocalyptic number.

85001623 is a deficient number, since it is larger than the sum of its proper divisors (13877873).

85001623 is a wasteful number, since it uses less digits than its factorization.

85001623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734741 (or 1734734 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 85001623 is about 9219.6324764060. The cubic root of 85001623 is about 439.6857656508.

The spelling of 85001623 in words is "eighty-five million, one thousand, six hundred twenty-three".