672989276 has 6 divisors (see below), whose sum is σ = 1177731240. Its totient is φ = 336494636.

The previous prime is 672989267. The next prime is 672989279.

It is a happy number.

672989276 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×672989276² = 905829131222008352, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672989279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84123656 + ... + 84123663.

It is an arithmetic number, because the mean of its divisors is an integer number (196288540).

Almost surely, 2^672989276 is an apocalyptic number.

It is an amenable number.

672989276 is a deficient number, since it is larger than the sum of its proper divisors (504741964).

672989276 is a wasteful number, since it uses less digits than its factorization.

672989276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168247323 (or 168247321 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 56.

The square root of 672989276 is about 25942.0368514116. The cubic root of 672989276 is about 876.3334340169. Note that the first 3 decimals are identical.

The spelling of 672989276 in words is "six hundred seventy-two million, nine hundred eighty-nine thousand, two hundred seventy-six".