231279678 has 64 divisors (see below), whose sum is σ = 589585920. Its totient is φ = 65831616.

The previous prime is 231279673. The next prime is 231279691. The reversal of 231279678 is 876972132.

231279678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231279673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115050 + ... + 117042.

It is an arithmetic number, because the mean of its divisors is an integer number (9212280).

Almost surely, 2^231279678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231279678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294792960).

231279678 is an abundant number, since it is smaller than the sum of its proper divisors (358306242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231279678 is a wasteful number, since it uses less digits than its factorization.

231279678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318 (or 2312 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 231279678 is about 15207.8821010685. The cubic root of 231279678 is about 613.8267698058.

The spelling of 231279678 in words is "two hundred thirty-one million, two hundred seventy-nine thousand, six hundred seventy-eight".