993667 has 4 divisors (see below), whose sum is σ = 1052136. Its totient is φ = 935200.

The previous prime is 993647. The next prime is 993679. The reversal of 993667 is 766399.

993667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 993667 - 2¹¹ = 991619 is a prime.

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 993667.

It is not an unprimeable number, because it can be changed into a prime (993617) 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, 29209 + ... + 29242.

It is an arithmetic number, because the mean of its divisors is an integer number (263034).

2⁹⁹³⁶⁶⁷ is an apocalyptic number.

993667 is a deficient number, since it is larger than the sum of its proper divisors (58469).

993667 is a wasteful number, since it uses less digits than its factorization.

993667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58468.

The product of its digits is 61236, while the sum is 40.

The square root of 993667 is about 996.8284707010. The cubic root of 993667 is about 99.7884527934.

The spelling of 993667 in words is "nine hundred ninety-three thousand, six hundred sixty-seven".