667058 has 32 divisors (see below), whose sum is σ = 1244160. Its totient is φ = 262080.

The previous prime is 667021. The next prime is 667081. The reversal of 667058 is 850766.

Added to its reverse (850766) it gives a square (1517824 = 1232²).

667058 is nontrivially palindromic in base 6.

667058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12560 + ... + 12612.

It is an arithmetic number, because the mean of its divisors is an integer number (38880).

2⁶⁶⁷⁰⁵⁸ is an apocalyptic number.

667058 is a deficient number, since it is larger than the sum of its proper divisors (577102).

667058 is a wasteful number, since it uses less digits than its factorization.

667058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 667058 is about 816.7361875171. The cubic root of 667058 is about 87.3751361879.

Adding to 667058 its reverse (850766), we get a square (1517824 = 1232²).

The spelling of 667058 in words is "six hundred sixty-seven thousand, fifty-eight".