673245406 has 4 divisors (see below), whose sum is σ = 1009868112. Its totient is φ = 336622702.

The previous prime is 673245361. The next prime is 673245409. The reversal of 673245406 is 604542376.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673245409) 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 as a sum of consecutive naturals, namely, 168311350 + ... + 168311353.

It is an arithmetic number, because the mean of its divisors is an integer number (252467028).

Almost surely, 2^673245406 is an apocalyptic number.

673245406 is a deficient number, since it is larger than the sum of its proper divisors (336622706).

673245406 is a wasteful number, since it uses less digits than its factorization.

673245406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336622705.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 673245406 is about 25946.9729641051. The cubic root of 673245406 is about 876.4445931996. Note that the first 3 decimals are identical.

The spelling of 673245406 in words is "six hundred seventy-three million, two hundred forty-five thousand, four hundred six".