8406198547 has 4 divisors (see below), whose sum is σ = 8406468720. Its totient is φ = 8405928376.

The previous prime is 8406198529. The next prime is 8406198551. The reversal of 8406198547 is 7458916048.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8406198547 is a prime.

It is a super-2 number, since 2×8406198547² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8406198494 and 8406198503.

It is not an unprimeable number, because it can be changed into a prime (8406198847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81268 + ... + 153025.

It is an arithmetic number, because the mean of its divisors is an integer number (2101617180).

Almost surely, 2^8406198547 is an apocalyptic number.

8406198547 is a deficient number, since it is larger than the sum of its proper divisors (270173).

8406198547 is a wasteful number, since it uses less digits than its factorization.

8406198547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270172.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The square root of 8406198547 is about 91685.3235092727. The cubic root of 8406198547 is about 2033.2926050219.

The spelling of 8406198547 in words is "eight billion, four hundred six million, one hundred ninety-eight thousand, five hundred forty-seven".