947890860 has 96 divisors (see below), whose sum is σ = 3038031360. Its totient is φ = 216319488.

The previous prime is 947890859. The next prime is 947890861. The reversal of 947890860 is 68098749.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (947890859) and next prime (947890861).

It is not an unprimeable number, because it can be changed into a prime (947890861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345976 + ... + 348704.

It is an arithmetic number, because the mean of its divisors is an integer number (31646160).

Almost surely, 2^947890860 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 947890860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1519015680).

947890860 is an abundant number, since it is smaller than the sum of its proper divisors (2090140500).

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

947890860 is a wasteful number, since it uses less digits than its factorization.

947890860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575 (or 3573 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 947890860 is about 30787.8362344612. The cubic root of 947890860 is about 982.3195299445.

The spelling of 947890860 in words is "nine hundred forty-seven million, eight hundred ninety thousand, eight hundred sixty".