672881569 has 8 divisors (see below), whose sum is σ = 677851520. Its totient is φ = 667927296.

The previous prime is 672881557. The next prime is 672881611. The reversal of 672881569 is 965188276.

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

It is a cyclic number.

It is not a de Polignac number, because 672881569 - 2¹⁵ = 672848801 is a prime.

It is a super-2 number, since 2×672881569² = 905539211799803522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672881509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90412 + ... + 97570.

It is an arithmetic number, because the mean of its divisors is an integer number (84731440).

Almost surely, 2^672881569 is an apocalyptic number.

It is an amenable number.

672881569 is a deficient number, since it is larger than the sum of its proper divisors (4969951).

672881569 is a wasteful number, since it uses less digits than its factorization.

672881569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7839.

The product of its digits is 1451520, while the sum is 52.

The square root of 672881569 is about 25939.9608519365. The cubic root of 672881569 is about 876.2866812754.

The spelling of 672881569 in words is "six hundred seventy-two million, eight hundred eighty-one thousand, five hundred sixty-nine".