672341689 has 8 divisors (see below), whose sum is σ = 698275080. Its totient is φ = 646816896.

The previous prime is 672341647. The next prime is 672341707. The reversal of 672341689 is 986143276.

It can be written as a sum of positive squares in 4 ways, for example, as 3240000 + 669101689 = 1800^2 + 25867^2 .

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 672341689 - 2²⁷ = 538123961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672341389) 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, 98794 + ... + 105379.

It is an arithmetic number, because the mean of its divisors is an integer number (87284385).

Almost surely, 2^672341689 is an apocalyptic number.

It is an amenable number.

672341689 is a deficient number, since it is larger than the sum of its proper divisors (25933391).

672341689 is a wasteful number, since it uses less digits than its factorization.

672341689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204299.

The product of its digits is 435456, while the sum is 46.

The square root of 672341689 is about 25929.5524257554. The cubic root of 672341689 is about 876.0522585290.

The spelling of 672341689 in words is "six hundred seventy-two million, three hundred forty-one thousand, six hundred eighty-nine".