672268689 has 24 divisors (see below), whose sum is σ = 1033961760. Its totient is φ = 419442048.

The previous prime is 672268673. The next prime is 672268693. The reversal of 672268689 is 986862276.

It is not a de Polignac number, because 672268689 - 2⁴ = 672268673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672268669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15114 + ... + 39660.

It is an arithmetic number, because the mean of its divisors is an integer number (43081740).

Almost surely, 2^672268689 is an apocalyptic number.

It is an amenable number.

672268689 is a deficient number, since it is larger than the sum of its proper divisors (361693071).

672268689 is a wasteful number, since it uses less digits than its factorization.

672268689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24749 (or 24746 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 672268689 is about 25928.1447273036. The cubic root of 672268689 is about 876.0205513725.

It can be divided in two parts, 672 and 268689, that added together give a square (269361 = 519²).

The spelling of 672268689 in words is "six hundred seventy-two million, two hundred sixty-eight thousand, six hundred eighty-nine".