947507947 has 2 divisors, whose sum is σ = 947507948. Its totient is φ = 947507946.

The previous prime is 947507933. The next prime is 947507969. The reversal of 947507947 is 749705749.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 947507947 - 2⁷ = 947507819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 947507894 and 947507903.

It is not a weakly prime, because it can be changed into another prime (947507347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473753973 + 473753974.

It is an arithmetic number, because the mean of its divisors is an integer number (473753974).

Almost surely, 2^947507947 is an apocalyptic number.

947507947 is a deficient number, since it is larger than the sum of its proper divisors (1).

947507947 is an equidigital number, since it uses as much as digits as its factorization.

947507947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2222640, while the sum is 52.

The square root of 947507947 is about 30781.6170302991. The cubic root of 947507947 is about 982.1872384910.

The spelling of 947507947 in words is "nine hundred forty-seven million, five hundred seven thousand, nine hundred forty-seven".