978238 has 12 divisors (see below), whose sum is σ = 1506168. Its totient is φ = 476420.

The previous prime is 978233. The next prime is 978239. The reversal of 978238 is 832879.

It is a junction number, because it is equal to n+sod(n) for n = 978197 and 978206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11745 + ... + 11827.

It is an arithmetic number, because the mean of its divisors is an integer number (125514).

2⁹⁷⁸²³⁸ is an apocalyptic number.

978238 is a deficient number, since it is larger than the sum of its proper divisors (527930).

978238 is an equidigital number, since it uses as much as digits as its factorization.

978238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 156 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 978238 is about 989.0591488885. The cubic root of 978238 is about 99.2692733922.

The spelling of 978238 in words is "nine hundred seventy-eight thousand, two hundred thirty-eight".