947478896 has 90 divisors (see below), whose sum is σ = 2312677872. Its totient is φ = 374774400.

The previous prime is 947478887. The next prime is 947478919. The reversal of 947478896 is 698874749.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 128921 + ... + 136071.

Almost surely, 2^947478896 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 947478896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1156338936).

947478896 is an abundant number, since it is smaller than the sum of its proper divisors (1365198976).

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

947478896 is a wasteful number, since it uses less digits than its factorization.

947478896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7199 (or 7173 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 62.

The square root of 947478896 is about 30781.1451378924. The cubic root of 947478896 is about 982.1772002944.

The spelling of 947478896 in words is "nine hundred forty-seven million, four hundred seventy-eight thousand, eight hundred ninety-six".