673245407 has 8 divisors (see below), whose sum is σ = 713523456. Its totient is φ = 633042432.

The previous prime is 673245361. The next prime is 673245409. The reversal of 673245407 is 704542376.

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 673245407 - 2²⁴ = 656468191 is a prime.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263 + ... + 36695.

It is an arithmetic number, because the mean of its divisors is an integer number (89190432).

Almost surely, 2^673245407 is an apocalyptic number.

673245407 is a deficient number, since it is larger than the sum of its proper divisors (40278049).

673245407 is a wasteful number, since it uses less digits than its factorization.

673245407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37537.

The product of its (nonzero) digits is 141120, while the sum is 38.

The square root of 673245407 is about 25946.9729833752. The cubic root of 673245407 is about 876.4445936336. Note that the first 3 decimals are identical.

The spelling of 673245407 in words is "six hundred seventy-three million, two hundred forty-five thousand, four hundred seven".