673712357 has 2 divisors, whose sum is σ = 673712358. Its totient is φ = 673712356.

The previous prime is 673712341. The next prime is 673712371. The reversal of 673712357 is 753217376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361342081 + 312370276 = 19009^2 + 17674^2 .

It is a cyclic number.

It is not a de Polignac number, because 673712357 - 2⁴ = 673712341 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673702357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336856178 + 336856179.

It is an arithmetic number, because the mean of its divisors is an integer number (336856179).

Almost surely, 2^673712357 is an apocalyptic number.

It is an amenable number.

673712357 is a deficient number, since it is larger than the sum of its proper divisors (1).

673712357 is an equidigital number, since it uses as much as digits as its factorization.

673712357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185220, while the sum is 41.

The square root of 673712357 is about 25955.9695831229. The cubic root of 673712357 is about 876.6471751479.

The spelling of 673712357 in words is "six hundred seventy-three million, seven hundred twelve thousand, three hundred fifty-seven".