85388945 has 16 divisors (see below), whose sum is σ = 108319680. Its totient is φ = 64440000.

The previous prime is 85388929. The next prime is 85388969. The reversal of 85388945 is 54988358.

It is not a de Polignac number, because 85388945 - 2⁴ = 85388929 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85388893 and 85388902.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22055 + ... + 25635.

It is an arithmetic number, because the mean of its divisors is an integer number (6769980).

Almost surely, 2^85388945 is an apocalyptic number.

It is an amenable number.

85388945 is a deficient number, since it is larger than the sum of its proper divisors (22930735).

85388945 is a wasteful number, since it uses less digits than its factorization.

85388945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3856.

The product of its digits is 1382400, while the sum is 50.

The square root of 85388945 is about 9240.6138865337. The cubic root of 85388945 is about 440.3525841247.

It can be divided in two parts, 853 and 88945, that added together give a palindrome (89798).

The spelling of 85388945 in words is "eighty-five million, three hundred eighty-eight thousand, nine hundred forty-five".