847138 has 8 divisors (see below), whose sum is σ = 1274832. Its totient is φ = 422196.

The previous prime is 847129. The next prime is 847139. The reversal of 847138 is 831748.

It is a happy number.

847138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 847138.

It is not an unprimeable number, because it can be changed into a prime (847139) 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, 481 + ... + 1387.

It is an arithmetic number, because the mean of its divisors is an integer number (159354).

2⁸⁴⁷¹³⁸ is an apocalyptic number.

847138 is a deficient number, since it is larger than the sum of its proper divisors (427694).

847138 is a wasteful number, since it uses less digits than its factorization.

847138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376.

The product of its digits is 5376, while the sum is 31.

The square root of 847138 is about 920.4009995649. The cubic root of 847138 is about 94.6203872406.

It can be divided in two parts, 847 and 138, that multiplied together give a triangular number (116886 = T₄₈₃).

The spelling of 847138 in words is "eight hundred forty-seven thousand, one hundred thirty-eight".