842198547 has 16 divisors (see below), whose sum is σ = 1190356992. Its totient is φ = 527829120.

The previous prime is 842198543. The next prime is 842198549. The reversal of 842198547 is 745891248.

It is a happy number.

842198547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 842198547 - 2² = 842198543 is a prime.

It is a super-2 number, since 2×842198547² = 1418596785137822418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 842198496 and 842198505.

It is not an unprimeable number, because it can be changed into a prime (842198543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37398 + ... + 55524.

It is an arithmetic number, because the mean of its divisors is an integer number (74397312).

Almost surely, 2^842198547 is an apocalyptic number.

842198547 is a deficient number, since it is larger than the sum of its proper divisors (348158445).

842198547 is a wasteful number, since it uses less digits than its factorization.

842198547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19058.

The product of its digits is 645120, while the sum is 48.

The square root of 842198547 is about 29020.6572461755. The cubic root of 842198547 is about 944.3612592442.

The spelling of 842198547 in words is "eight hundred forty-two million, one hundred ninety-eight thousand, five hundred forty-seven".