913289388 has 96 divisors (see below), whose sum is σ = 2410856448. Its totient is φ = 266587200.

The previous prime is 913289371. The next prime is 913289407. The reversal of 913289388 is 883982319.

It is a self number, because there is not a number n which added to its sum of digits gives 913289388.

It is an unprimeable number.

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, 1255881 + ... + 1256607.

It is an arithmetic number, because the mean of its divisors is an integer number (25113088).

Almost surely, 2^913289388 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 913289388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1205428224).

913289388 is an abundant number, since it is smaller than the sum of its proper divisors (1497567060).

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

913289388 is a wasteful number, since it uses less digits than its factorization.

913289388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083 (or 1081 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The square root of 913289388 is about 30220.6781525498. The cubic root of 913289388 is about 970.2183190880.

The spelling of 913289388 in words is "nine hundred thirteen million, two hundred eighty-nine thousand, three hundred eighty-eight".