9394649387 has 2 divisors, whose sum is σ = 9394649388. Its totient is φ = 9394649386.

The previous prime is 9394649377. The next prime is 9394649393. The reversal of 9394649387 is 7839464939.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9394649387 - 2¹² = 9394645291 is a prime.

It is not a weakly prime, because it can be changed into another prime (9394649377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4697324693 + 4697324694.

It is an arithmetic number, because the mean of its divisors is an integer number (4697324694).

Almost surely, 2^9394649387 is an apocalyptic number.

9394649387 is a deficient number, since it is larger than the sum of its proper divisors (1).

9394649387 is an equidigital number, since it uses as much as digits as its factorization.

9394649387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35271936, while the sum is 62.

The square root of 9394649387 is about 96925.9995408869. Note that the first 3 decimals coincide. The cubic root of 9394649387 is about 2110.0537850069.

The spelling of 9394649387 in words is "nine billion, three hundred ninety-four million, six hundred forty-nine thousand, three hundred eighty-seven".