673613771 has 2 divisors, whose sum is σ = 673613772. Its totient is φ = 673613770.

The previous prime is 673613761. The next prime is 673613777. The reversal of 673613771 is 177316376.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673613771 is a prime.

It is not a weakly prime, because it can be changed into another prime (673613777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336806885 + 336806886.

It is an arithmetic number, because the mean of its divisors is an integer number (336806886).

Almost surely, 2^673613771 is an apocalyptic number.

673613771 is a deficient number, since it is larger than the sum of its proper divisors (1).

673613771 is an equidigital number, since it uses as much as digits as its factorization.

673613771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111132, while the sum is 41.

The square root of 673613771 is about 25954.0704129429. The cubic root of 673613771 is about 876.6044124102.

The spelling of 673613771 in words is "six hundred seventy-three million, six hundred thirteen thousand, seven hundred seventy-one".