673426969 has 8 divisors (see below), whose sum is σ = 676879560. Its totient is φ = 669984000.

The previous prime is 673426939. The next prime is 673426979. The reversal of 673426969 is 969624376.

It can be written as a sum of positive squares in 4 ways, for example, as 84879369 + 588547600 = 9213^2 + 24260^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 673426969 - 2⁷ = 673426841 is a prime.

It is a super-2 number, since 2×673426969² = 907007765153053922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673426909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166827 + ... + 170815.

It is an arithmetic number, because the mean of its divisors is an integer number (84609945).

Almost surely, 2^673426969 is an apocalyptic number.

It is an amenable number.

673426969 is a deficient number, since it is larger than the sum of its proper divisors (3452591).

673426969 is a wasteful number, since it uses less digits than its factorization.

673426969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811.

The product of its digits is 2939328, while the sum is 52.

The square root of 673426969 is about 25950.4714600718. The cubic root of 673426969 is about 876.5233735896.

The spelling of 673426969 in words is "six hundred seventy-three million, four hundred twenty-six thousand, nine hundred sixty-nine".