331667 has 4 divisors (see below), whose sum is σ = 379056. Its totient is φ = 284280.

The previous prime is 331663. The next prime is 331691. The reversal of 331667 is 766133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766133 = 197 ⋅3889.

It is a cyclic number.

It is not a de Polignac number, because 331667 - 2² = 331663 is a prime.

It is a super-2 number, since 2×331667² = 220005997778, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 331667.

It is not an unprimeable number, because it can be changed into a prime (331663) 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, 23684 + ... + 23697.

It is an arithmetic number, because the mean of its divisors is an integer number (94764).

2³³¹⁶⁶⁷ is an apocalyptic number.

331667 is a deficient number, since it is larger than the sum of its proper divisors (47389).

331667 is an equidigital number, since it uses as much as digits as its factorization.

331667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47388.

The product of its digits is 2268, while the sum is 26.

The square root of 331667 is about 575.9053741718. The cubic root of 331667 is about 69.2203972749.

The spelling of 331667 in words is "three hundred thirty-one thousand, six hundred sixty-seven".