384962609 has 2 divisors, whose sum is σ = 384962610. Its totient is φ = 384962608.

The previous prime is 384962573. The next prime is 384962659. The reversal of 384962609 is 906269483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 276490384 + 108472225 = 16628^2 + 10415^2 .

It is a cyclic number.

It is not a de Polignac number, because 384962609 - 2¹² = 384958513 is a prime.

It is not a weakly prime, because it can be changed into another prime (384962659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192481304 + 192481305.

It is an arithmetic number, because the mean of its divisors is an integer number (192481305).

Almost surely, 2^384962609 is an apocalyptic number.

It is an amenable number.

384962609 is a deficient number, since it is larger than the sum of its proper divisors (1).

384962609 is an equidigital number, since it uses as much as digits as its factorization.

384962609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 384962609 is about 19620.4640363066. The cubic root of 384962609 is about 727.4550833343.

The spelling of 384962609 in words is "three hundred eighty-four million, nine hundred sixty-two thousand, six hundred nine".