667074 has 16 divisors (see below), whose sum is σ = 1353312. Its totient is φ = 219168.

The previous prime is 667021. The next prime is 667081. The reversal of 667074 is 470766.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324 + ... + 1199.

It is an arithmetic number, because the mean of its divisors is an integer number (84582).

2⁶⁶⁷⁰⁷⁴ is an apocalyptic number.

667074 is an abundant number, since it is smaller than the sum of its proper divisors (686238).

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

667074 is a wasteful number, since it uses less digits than its factorization.

667074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 667074 is about 816.7459825429. The cubic root of 667074 is about 87.3758347734.

It can be divided in two parts, 66 and 7074, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 667074 in words is "six hundred sixty-seven thousand, seventy-four".