838630447 has 8 divisors (see below), whose sum is σ = 858787776. Its totient is φ = 818569632.

The previous prime is 838630427. The next prime is 838630469. The reversal of 838630447 is 744036838.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 838630447 - 2⁷ = 838630319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838630427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6388 + ... + 41449.

It is an arithmetic number, because the mean of its divisors is an integer number (107348472).

Almost surely, 2^838630447 is an apocalyptic number.

838630447 is a deficient number, since it is larger than the sum of its proper divisors (20157329).

838630447 is a wasteful number, since it uses less digits than its factorization.

838630447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48257.

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 838630447 is about 28959.1168200966. The cubic root of 838630447 is about 943.0257288743.

The spelling of 838630447 in words is "eight hundred thirty-eight million, six hundred thirty thousand, four hundred forty-seven".