672584881 has 2 divisors, whose sum is σ = 672584882. Its totient is φ = 672584880.

The previous prime is 672584839. The next prime is 672584909. The reversal of 672584881 is 188485276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519840000 + 152744881 = 22800^2 + 12359^2 .

It is a cyclic number.

It is not a de Polignac number, because 672584881 - 2¹³ = 672576689 is a prime.

It is a super-2 number, since 2×672584881² = 904740844299568322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (672584281) by changing a digit.

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, 336292440 + 336292441.

It is an arithmetic number, because the mean of its divisors is an integer number (336292441).

Almost surely, 2^672584881 is an apocalyptic number.

It is an amenable number.

672584881 is a deficient number, since it is larger than the sum of its proper divisors (1).

672584881 is an equidigital number, since it uses as much as digits as its factorization.

672584881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 860160, while the sum is 49.

The square root of 672584881 is about 25934.2414772439. The cubic root of 672584881 is about 876.1578711078.

The spelling of 672584881 in words is "six hundred seventy-two million, five hundred eighty-four thousand, eight hundred eighty-one".