672176564 has 12 divisors (see below), whose sum is σ = 1227453024. Its totient is φ = 321475704.

The previous prime is 672176539. The next prime is 672176569. The reversal of 672176564 is 465671276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672176569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3653042 + ... + 3653225.

It is an arithmetic number, because the mean of its divisors is an integer number (102287752).

Almost surely, 2^672176564 is an apocalyptic number.

It is an amenable number.

672176564 is a deficient number, since it is larger than the sum of its proper divisors (555276460).

672176564 is a wasteful number, since it uses less digits than its factorization.

672176564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7306294 (or 7306292 counting only the distinct ones).

The product of its digits is 423360, while the sum is 44.

The square root of 672176564 is about 25926.3681220490. The cubic root of 672176564 is about 875.9805340990.

The spelling of 672176564 in words is "six hundred seventy-two million, one hundred seventy-six thousand, five hundred sixty-four".