986581134 has 160 divisors (see below), whose sum is σ = 2780870400. Its totient is φ = 253964160.

The previous prime is 986581133. The next prime is 986581147. The reversal of 986581134 is 431185689.

It is a self number, because there is not a number n which added to its sum of digits gives 986581134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986581133) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1733602 + ... + 1734170.

It is an arithmetic number, because the mean of its divisors is an integer number (17380440).

Almost surely, 2^986581134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 986581134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1390435200).

986581134 is an abundant number, since it is smaller than the sum of its proper divisors (1794289266).

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

986581134 is a wasteful number, since it uses less digits than its factorization.

986581134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 731 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 986581134 is about 31409.8891115521. The cubic root of 986581134 is about 995.5068868365.

The spelling of 986581134 in words is "nine hundred eighty-six million, five hundred eighty-one thousand, one hundred thirty-four".