8197645 has 8 divisors (see below), whose sum is σ = 10355040. Its totient is φ = 6212880.

The previous prime is 8197627. The next prime is 8197687. The reversal of 8197645 is 5467918.

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

It is not a de Polignac number, because 8197645 - 2¹³ = 8189453 is a prime.

It is a super-3 number, since 3×8197645³ (a number of 22 digits) contains 333 as substring.

8197645 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8197598 and 8197607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43051 + ... + 43240.

It is an arithmetic number, because the mean of its divisors is an integer number (1294380).

Almost surely, 2^8197645 is an apocalyptic number.

It is an amenable number.

8197645 is a deficient number, since it is larger than the sum of its proper divisors (2157395).

8197645 is a wasteful number, since it uses less digits than its factorization.

8197645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86315.

The product of its digits is 60480, while the sum is 40.

The square root of 8197645 is about 2863.1529822907. The cubic root of 8197645 is about 201.6336610906.

It can be divided in two parts, 819 and 7645, that added together give a square (8464 = 92²).

The spelling of 8197645 in words is "eight million, one hundred ninety-seven thousand, six hundred forty-five".