671263743 has 8 divisors (see below), whose sum is σ = 898962048. Its totient is φ = 445537304.

The previous prime is 671263699. The next prime is 671263753. The reversal of 671263743 is 347362176.

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 671263743 - 2⁶ = 671263679 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671263753) 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, 492171 + ... + 493532.

It is an arithmetic number, because the mean of its divisors is an integer number (112370256).

Almost surely, 2^671263743 is an apocalyptic number.

671263743 is a deficient number, since it is larger than the sum of its proper divisors (227698305).

671263743 is a wasteful number, since it uses less digits than its factorization.

671263743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985933.

The product of its digits is 127008, while the sum is 39.

The square root of 671263743 is about 25908.7580366177. The cubic root of 671263743 is about 875.5838250081.

The spelling of 671263743 in words is "six hundred seventy-one million, two hundred sixty-three thousand, seven hundred forty-three".