849197544 has 128 divisors (see below), whose sum is σ = 2341785600. Its totient is φ = 255041280.

The previous prime is 849197543. The next prime is 849197567. The reversal of 849197544 is 445791948.

It is a super-2 number, since 2×849197544² = 1442272937471263872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (849197543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3228757 + ... + 3229019.

It is an arithmetic number, because the mean of its divisors is an integer number (18295200).

Almost surely, 2^849197544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 849197544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1170892800).

849197544 is an abundant number, since it is smaller than the sum of its proper divisors (1492588056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

849197544 is a wasteful number, since it uses less digits than its factorization.

849197544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 491 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 849197544 is about 29140.9942177682. The cubic root of 849197544 is about 946.9700487883.

The spelling of 849197544 in words is "eight hundred forty-nine million, one hundred ninety-seven thousand, five hundred forty-four".