85646475 has 18 divisors (see below), whose sum is σ = 153402756. Its totient is φ = 45678000.

The previous prime is 85646467. The next prime is 85646489. The reversal of 85646475 is 57464658.

It is not a de Polignac number, because 85646475 - 2³ = 85646467 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 85646475.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 190101 + ... + 190550.

Almost surely, 2^85646475 is an apocalyptic number.

85646475 is a deficient number, since it is larger than the sum of its proper divisors (67756281).

85646475 is a wasteful number, since it uses less digits than its factorization.

85646475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380667 (or 380659 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 85646475 is about 9254.5380759928. The cubic root of 85646475 is about 440.7948356916.

The spelling of 85646475 in words is "eighty-five million, six hundred forty-six thousand, four hundred seventy-five".