672758984 has 8 divisors (see below), whose sum is σ = 1261423110. Its totient is φ = 336379488.

The previous prime is 672758959. The next prime is 672759001. The reversal of 672758984 is 489857276.

It can be written as a sum of positive squares in only one way, i.e., 631516900 + 41242084 = 25130^2 + 6422^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42047429 + ... + 42047444.

Almost surely, 2^672758984 is an apocalyptic number.

It is an amenable number.

672758984 is a deficient number, since it is larger than the sum of its proper divisors (588664126).

672758984 is a wasteful number, since it uses less digits than its factorization.

672758984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84094879 (or 84094875 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 56.

The square root of 672758984 is about 25937.5978841526. The cubic root of 672758984 is about 876.2334643194.

The spelling of 672758984 in words is "six hundred seventy-two million, seven hundred fifty-eight thousand, nine hundred eighty-four".