947964127 has 4 divisors (see below), whose sum is σ = 1034142696. Its totient is φ = 861785560.

The previous prime is 947964109. The next prime is 947964137. The reversal of 947964127 is 721469749.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-947964127 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947964107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43089268 + ... + 43089289.

It is an arithmetic number, because the mean of its divisors is an integer number (258535674).

Almost surely, 2^947964127 is an apocalyptic number.

947964127 is a deficient number, since it is larger than the sum of its proper divisors (86178569).

947964127 is a wasteful number, since it uses less digits than its factorization.

947964127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86178568.

The product of its digits is 762048, while the sum is 49.

The square root of 947964127 is about 30789.0260807321. The cubic root of 947964127 is about 982.3448386777.

The spelling of 947964127 in words is "nine hundred forty-seven million, nine hundred sixty-four thousand, one hundred twenty-seven".