672367666 has 8 divisors (see below), whose sum is σ = 1015231104. Its totient is φ = 333957300.

The previous prime is 672367613. The next prime is 672367669. The reversal of 672367666 is 666763276.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (672367669) 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, 1112890 + ... + 1113493.

It is an arithmetic number, because the mean of its divisors is an integer number (126903888).

Almost surely, 2^672367666 is an apocalyptic number.

672367666 is a deficient number, since it is larger than the sum of its proper divisors (342863438).

672367666 is a wasteful number, since it uses less digits than its factorization.

672367666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226536.

The product of its digits is 2286144, while the sum is 49.

The square root of 672367666 is about 25930.0533358495. The cubic root of 672367666 is about 876.0635409453.

The spelling of 672367666 in words is "six hundred seventy-two million, three hundred sixty-seven thousand, six hundred sixty-six".