667850006 has 4 divisors (see below), whose sum is σ = 1001775012. Its totient is φ = 333925002.

The previous prime is 667849967. The next prime is 667850009. The reversal of 667850006 is 600058766.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 600058766 = 2 ⋅300029383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667850009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166962500 + ... + 166962503.

It is an arithmetic number, because the mean of its divisors is an integer number (250443753).

Almost surely, 2^667850006 is an apocalyptic number.

667850006 is a deficient number, since it is larger than the sum of its proper divisors (333925006).

667850006 is a wasteful number, since it uses less digits than its factorization.

667850006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333925005.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 667850006 is about 25842.7940826839. The cubic root of 667850006 is about 874.0970302830.

The spelling of 667850006 in words is "six hundred sixty-seven million, eight hundred fifty thousand, six".