947363899 has 2 divisors, whose sum is σ = 947363900. Its totient is φ = 947363898.

The previous prime is 947363897. The next prime is 947363969. The reversal of 947363899 is 998363749.

It is a weak prime.

It is an emirp because it is prime and its reverse (998363749) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 947363899 - 2¹ = 947363897 is a prime.

Together with 947363897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (947363897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473681949 + 473681950.

It is an arithmetic number, because the mean of its divisors is an integer number (473681950).

Almost surely, 2^947363899 is an apocalyptic number.

947363899 is a deficient number, since it is larger than the sum of its proper divisors (1).

947363899 is an equidigital number, since it uses as much as digits as its factorization.

947363899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 58.

The square root of 947363899 is about 30779.2771032719. The cubic root of 947363899 is about 982.1374625575.

The spelling of 947363899 in words is "nine hundred forty-seven million, three hundred sixty-three thousand, eight hundred ninety-nine".