673256757 has 4 divisors (see below), whose sum is σ = 897675680. Its totient is φ = 448837836.

The previous prime is 673256747. The next prime is 673256783. The reversal of 673256757 is 757652376.

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 673256757 - 2¹⁰ = 673255733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673256747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112209457 + ... + 112209462.

It is an arithmetic number, because the mean of its divisors is an integer number (224418920).

Almost surely, 2^673256757 is an apocalyptic number.

It is an amenable number.

673256757 is a deficient number, since it is larger than the sum of its proper divisors (224418923).

673256757 is a wasteful number, since it uses less digits than its factorization.

673256757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224418922.

The product of its digits is 1852200, while the sum is 48.

The square root of 673256757 is about 25947.1916977541. The cubic root of 673256757 is about 876.4495188263.

The spelling of 673256757 in words is "six hundred seventy-three million, two hundred fifty-six thousand, seven hundred fifty-seven".