673957 has 4 divisors (see below), whose sum is σ = 685440. Its totient is φ = 662476.

The previous prime is 673951. The next prime is 673961. The reversal of 673957 is 759376.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673957 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 (673951) 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, 5653 + ... + 5770.

It is an arithmetic number, because the mean of its divisors is an integer number (171360).

2⁶⁷³⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

673957 is a deficient number, since it is larger than the sum of its proper divisors (11483).

673957 is a wasteful number, since it uses less digits than its factorization.

673957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11482.

The product of its digits is 39690, while the sum is 37.

The square root of 673957 is about 820.9488412806. The cubic root of 673957 is about 87.6753273662.

The spelling of 673957 in words is "six hundred seventy-three thousand, nine hundred fifty-seven".