947689007 has 2 divisors, whose sum is σ = 947689008. Its totient is φ = 947689006.

The previous prime is 947688991. The next prime is 947689013. The reversal of 947689007 is 700986749.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 947689007 - 2⁴ = 947688991 is a prime.

It is a super-2 number, since 2×947689007² = 1796228907977292098, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (947689027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473844503 + 473844504.

It is an arithmetic number, because the mean of its divisors is an integer number (473844504).

Almost surely, 2^947689007 is an apocalyptic number.

947689007 is a deficient number, since it is larger than the sum of its proper divisors (1).

947689007 is an equidigital number, since it uses as much as digits as its factorization.

947689007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 947689007 is about 30784.5579308848. The cubic root of 947689007 is about 982.2497968036.

The spelling of 947689007 in words is "nine hundred forty-seven million, six hundred eighty-nine thousand, seven".