7231668 has 12 divisors (see below), whose sum is σ = 16873920. Its totient is φ = 2410552.

The previous prime is 7231663. The next prime is 7231669. The reversal of 7231668 is 8661327.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7231663) 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, 301308 + ... + 301331.

It is an arithmetic number, because the mean of its divisors is an integer number (1406160).

Almost surely, 2^7231668 is an apocalyptic number.

It is an amenable number.

7231668 is an abundant number, since it is smaller than the sum of its proper divisors (9642252).

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

7231668 is a wasteful number, since it uses less digits than its factorization.

7231668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602646 (or 602644 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 7231668 is about 2689.1760819998. The cubic root of 7231668 is about 193.3805658149.

The spelling of 7231668 in words is "seven million, two hundred thirty-one thousand, six hundred sixty-eight".