231606678 has 16 divisors (see below), whose sum is σ = 463362480. Its totient is φ = 77177376.

The previous prime is 231606677. The next prime is 231606689. The reversal of 231606678 is 876606132.

231606678 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 (231606677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34068 + ... + 40296.

It is an arithmetic number, because the mean of its divisors is an integer number (28960155).

Almost surely, 2^231606678 is an apocalyptic number.

231606678 is an abundant number, since it is smaller than the sum of its proper divisors (231755802).

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

231606678 is a wasteful number, since it uses less digits than its factorization.

231606678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12431.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 231606678 is about 15218.6293075296. The cubic root of 231606678 is about 614.1159245233.

The spelling of 231606678 in words is "two hundred thirty-one million, six hundred six thousand, six hundred seventy-eight".