673642 has 8 divisors (see below), whose sum is σ = 1069956. Its totient is φ = 316992.

The previous prime is 673639. The next prime is 673643. The reversal of 673642 is 246376.

673642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 641601 + 32041 = 801^2 + 179^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 673642.

It is not an unprimeable number, because it can be changed into a prime (673643) 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, 9873 + ... + 9940.

2⁶⁷³⁶⁴² is an apocalyptic number.

673642 is a deficient number, since it is larger than the sum of its proper divisors (396314).

673642 is a wasteful number, since it uses less digits than its factorization.

673642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19832.

The product of its digits is 6048, while the sum is 28.

The square root of 673642 is about 820.7569676829. The cubic root of 673642 is about 87.6616657469.

The spelling of 673642 in words is "six hundred seventy-three thousand, six hundred forty-two".