671877743 has 2 divisors, whose sum is σ = 671877744. Its totient is φ = 671877742.

The previous prime is 671877721. The next prime is 671877749. The reversal of 671877743 is 347778176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671877743 - 2¹² = 671873647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671877691 and 671877700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671877749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335938871 + 335938872.

It is an arithmetic number, because the mean of its divisors is an integer number (335938872).

Almost surely, 2^671877743 is an apocalyptic number.

671877743 is a deficient number, since it is larger than the sum of its proper divisors (1).

671877743 is an equidigital number, since it uses as much as digits as its factorization.

671877743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1382976, while the sum is 50.

The square root of 671877743 is about 25920.6046032881. The cubic root of 671877743 is about 875.8507070108.

The spelling of 671877743 in words is "six hundred seventy-one million, eight hundred seventy-seven thousand, seven hundred forty-three".