672121276 has 12 divisors (see below), whose sum is σ = 1238118280. Its totient is φ = 318373200.

The previous prime is 672121271. The next prime is 672121279.

672121276 is nontrivially palindromic in base 10.

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 (672121271) 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, 4421775 + ... + 4421926.

Almost surely, 2^672121276 is an apocalyptic number.

It is an amenable number.

672121276 is a deficient number, since it is larger than the sum of its proper divisors (565997004).

672121276 is a wasteful number, since it uses less digits than its factorization.

672121276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8843724 (or 8843722 counting only the distinct ones).

The product of its digits is 14112, while the sum is 34.

The square root of 672121276 is about 25925.3018497374. The cubic root of 672121276 is about 875.9565163323.

The spelling of 672121276 in words is "six hundred seventy-two million, one hundred twenty-one thousand, two hundred seventy-six".