673426 has 16 divisors (see below), whose sum is σ = 1108800. Its totient is φ = 304848.

The previous prime is 673411. The next prime is 673427. The reversal of 673426 is 624376.

It is a d-powerful number, because it can be written as 6³ + 7² + 4⁹ + 3² + 2¹⁷ + 6⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 673394 and 673403.

It is not an unprimeable number, because it can be changed into a prime (673427) 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, 1315 + ... + 1753.

It is an arithmetic number, because the mean of its divisors is an integer number (69300).

2⁶⁷³⁴²⁶ is an apocalyptic number.

673426 is the 439-th nonagonal number.

673426 is a deficient number, since it is larger than the sum of its proper divisors (435374).

673426 is a wasteful number, since it uses less digits than its factorization.

673426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513.

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

The square root of 673426 is about 820.6253712870. The cubic root of 673426 is about 87.6522953177.

The spelling of 673426 in words is "six hundred seventy-three thousand, four hundred twenty-six".