9448639 has 2 divisors, whose sum is σ = 9448640. Its totient is φ = 9448638.

The previous prime is 9448631. The next prime is 9448657. The reversal of 9448639 is 9368449.

9448639 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (9368449) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9448639 - 2³ = 9448631 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9448595 and 9448604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9448631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4724319 + 4724320.

It is an arithmetic number, because the mean of its divisors is an integer number (4724320).

Almost surely, 2^9448639 is an apocalyptic number.

9448639 is a deficient number, since it is larger than the sum of its proper divisors (1).

9448639 is an equidigital number, since it uses as much as digits as its factorization.

9448639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The square root of 9448639 is about 3073.8638551504. The cubic root of 9448639 is about 211.4088118730.

The spelling of 9448639 in words is "nine million, four hundred forty-eight thousand, six hundred thirty-nine".