947438699 has 2 divisors, whose sum is σ = 947438700. Its totient is φ = 947438698.

The previous prime is 947438689. The next prime is 947438773. The reversal of 947438699 is 996834749.

947438699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-947438699 is a prime.

It is not a weakly prime, because it can be changed into another prime (947438659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473719349 + 473719350.

It is an arithmetic number, because the mean of its divisors is an integer number (473719350).

Almost surely, 2^947438699 is an apocalyptic number.

947438699 is a deficient number, since it is larger than the sum of its proper divisors (1).

947438699 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 11 representation: 947438699 = (446893799)₁₁.

947438699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11757312, while the sum is 59.

The square root of 947438699 is about 30780.4921825496. The cubic root of 947438699 is about 982.1633104036.

The spelling of 947438699 in words is "nine hundred forty-seven million, four hundred thirty-eight thousand, six hundred ninety-nine".