947382660 has 216 divisors, whose sum is σ = 3364537176. Its totient is φ = 215147520.

The previous prime is 947382649. The next prime is 947382703. The reversal of 947382660 is 66283749.

It can be written as a sum of positive squares in 4 ways, for example, as 4769856 + 942612804 = 2184^2 + 30702^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2054830 + ... + 2055290.

It is an arithmetic number, because the mean of its divisors is an integer number (15576561).

Almost surely, 2^947382660 is an apocalyptic number.

947382660 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 947382660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682268588).

947382660 is an abundant number, since it is smaller than the sum of its proper divisors (2417154516).

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

947382660 is a wasteful number, since it uses less digits than its factorization.

947382660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 947382660 is about 30779.5818685050. The cubic root of 947382660 is about 982.1439457260.

The spelling of 947382660 in words is "nine hundred forty-seven million, three hundred eighty-two thousand, six hundred sixty".