838401347 has 4 divisors (see below), whose sum is σ = 958172976. Its totient is φ = 718629720.

The previous prime is 838401341. The next prime is 838401379. The reversal of 838401347 is 743104838.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 838401347 - 2¹² = 838397251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 838401347.

It is not an unprimeable number, because it can be changed into a prime (838401341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59885804 + ... + 59885817.

It is an arithmetic number, because the mean of its divisors is an integer number (239543244).

Almost surely, 2^838401347 is an apocalyptic number.

838401347 is a deficient number, since it is larger than the sum of its proper divisors (119771629).

838401347 is a wasteful number, since it uses less digits than its factorization.

838401347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119771628.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 838401347 is about 28955.1609734776. The cubic root of 838401347 is about 942.9398480306.

The spelling of 838401347 in words is "eight hundred thirty-eight million, four hundred one thousand, three hundred forty-seven".