947964533 has 2 divisors, whose sum is σ = 947964534. Its totient is φ = 947964532.

The previous prime is 947964503. The next prime is 947964547. The reversal of 947964533 is 335469749.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 816930724 + 131033809 = 28582^2 + 11447^2 .

It is a cyclic number.

It is not a de Polignac number, because 947964533 - 2¹⁴ = 947948149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (947964503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473982266 + 473982267.

It is an arithmetic number, because the mean of its divisors is an integer number (473982267).

Almost surely, 2^947964533 is an apocalyptic number.

It is an amenable number.

947964533 is a deficient number, since it is larger than the sum of its proper divisors (1).

947964533 is an equidigital number, since it uses as much as digits as its factorization.

947964533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 50.

The square root of 947964533 is about 30789.0326739896. The cubic root of 947964533 is about 982.3449789193.

The spelling of 947964533 in words is "nine hundred forty-seven million, nine hundred sixty-four thousand, five hundred thirty-three".