9390047449 has 2 divisors, whose sum is σ = 9390047450. Its totient is φ = 9390047448.

The previous prime is 9390047441. The next prime is 9390047477. The reversal of 9390047449 is 9447400939.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6343007449 + 3047040000 = 79643^2 + 55200^2 .

It is a cyclic number.

It is not a de Polignac number, because 9390047449 - 2³ = 9390047441 is a prime.

It is not a weakly prime, because it can be changed into another prime (9390047441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4695023724 + 4695023725.

It is an arithmetic number, because the mean of its divisors is an integer number (4695023725).

Almost surely, 2^9390047449 is an apocalyptic number.

It is an amenable number.

9390047449 is a deficient number, since it is larger than the sum of its proper divisors (1).

9390047449 is an equidigital number, since it uses as much as digits as its factorization.

9390047449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 9390047449 is about 96902.2571924927. The cubic root of 9390047449 is about 2109.7091944408.

The spelling of 9390047449 in words is "nine billion, three hundred ninety million, forty-seven thousand, four hundred forty-nine".