673969 has 4 divisors (see below), whose sum is σ = 703296. Its totient is φ = 644644.

The previous prime is 673961. The next prime is 673979. The reversal of 673969 is 969376.

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 673969 - 2³ = 673961 is a prime.

It is a super-2 number, since 2×673969² = 908468425922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (673961) 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, 14629 + ... + 14674.

It is an arithmetic number, because the mean of its divisors is an integer number (175824).

2⁶⁷³⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

673969 is a deficient number, since it is larger than the sum of its proper divisors (29327).

673969 is a wasteful number, since it uses less digits than its factorization.

673969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29326.

The product of its digits is 61236, while the sum is 40.

The square root of 673969 is about 820.9561498643. The cubic root of 673969 is about 87.6758477247.

The spelling of 673969 in words is "six hundred seventy-three thousand, nine hundred sixty-nine".