672736089 has 4 divisors (see below), whose sum is σ = 896981456. Its totient is φ = 448490724.

The previous prime is 672736081. The next prime is 672736093. The reversal of 672736089 is 980637276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 672736089 - 2³ = 672736081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672736081) 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, 112122679 + ... + 112122684.

It is an arithmetic number, because the mean of its divisors is an integer number (224245364).

Almost surely, 2^672736089 is an apocalyptic number.

It is an amenable number.

672736089 is a deficient number, since it is larger than the sum of its proper divisors (224245367).

672736089 is a wasteful number, since it uses less digits than its factorization.

672736089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224245366.

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 672736089 is about 25937.1565326656. The cubic root of 672736089 is about 876.2235243591.

The spelling of 672736089 in words is "six hundred seventy-two million, seven hundred thirty-six thousand, eighty-nine".