947964536 has 8 divisors (see below), whose sum is σ = 1777433520. Its totient is φ = 473982264.

The previous prime is 947964533. The next prime is 947964547. The reversal of 947964536 is 635469749.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947964533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59247776 + ... + 59247791.

It is an arithmetic number, because the mean of its divisors is an integer number (222179190).

Almost surely, 2^947964536 is an apocalyptic number.

It is an amenable number.

947964536 is a deficient number, since it is larger than the sum of its proper divisors (829468984).

947964536 is a wasteful number, since it uses less digits than its factorization.

947964536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118495573 (or 118495569 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 53.

The square root of 947964536 is about 30789.0327227083. The cubic root of 947964536 is about 982.3449799556.

The spelling of 947964536 in words is "nine hundred forty-seven million, nine hundred sixty-four thousand, five hundred thirty-six".