947164640 has 24 divisors (see below), whose sum is σ = 2237676840. Its totient is φ = 378865792.

The previous prime is 947164627. The next prime is 947164661. The reversal of 947164640 is 46461749.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2959730 + ... + 2960049.

It is an arithmetic number, because the mean of its divisors is an integer number (93236535).

Almost surely, 2^947164640 is an apocalyptic number.

It is an amenable number.

947164640 is an abundant number, since it is smaller than the sum of its proper divisors (1290512200).

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

947164640 is a wasteful number, since it uses less digits than its factorization.

947164640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919794 (or 5919786 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 947164640 is about 30776.0400311671. The cubic root of 947164640 is about 982.0686000887.

The spelling of 947164640 in words is "nine hundred forty-seven million, one hundred sixty-four thousand, six hundred forty".