85387653 has 48 divisors (see below), whose sum is σ = 142047360. Its totient is φ = 48988800.

The previous prime is 85387649. The next prime is 85387663. The reversal of 85387653 is 35678358.

It is not a de Polignac number, because 85387653 - 2² = 85387649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85387599 and 85387608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85387613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157563 + ... + 158103.

It is an arithmetic number, because the mean of its divisors is an integer number (2959320).

Almost surely, 2^85387653 is an apocalyptic number.

It is an amenable number.

85387653 is a deficient number, since it is larger than the sum of its proper divisors (56659707).

85387653 is a wasteful number, since it uses less digits than its factorization.

85387653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 647 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 85387653 is about 9240.5439774940. The cubic root of 85387653 is about 440.3503631564.

The spelling of 85387653 in words is "eighty-five million, three hundred eighty-seven thousand, six hundred fifty-three".