947957579 has 2 divisors, whose sum is σ = 947957580. Its totient is φ = 947957578.

The previous prime is 947957573. The next prime is 947957603. The reversal of 947957579 is 975759749.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 947957579 - 2⁸ = 947957323 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (947957573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473978789 + 473978790.

It is an arithmetic number, because the mean of its divisors is an integer number (473978790).

Almost surely, 2^947957579 is an apocalyptic number.

947957579 is a deficient number, since it is larger than the sum of its proper divisors (1).

947957579 is an equidigital number, since it uses as much as digits as its factorization.

947957579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25004700, while the sum is 62.

The square root of 947957579 is about 30788.9197439598. The cubic root of 947957579 is about 982.3425768450.

The spelling of 947957579 in words is "nine hundred forty-seven million, nine hundred fifty-seven thousand, five hundred seventy-nine".