671954741 has 4 divisors (see below), whose sum is σ = 707320800. Its totient is φ = 636588684.

The previous prime is 671954719. The next prime is 671954761. The reversal of 671954741 is 147459176.

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 not a de Polignac number, because 671954741 - 2⁶ = 671954677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 671954692 and 671954701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671954761) 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, 17683001 + ... + 17683038.

It is an arithmetic number, because the mean of its divisors is an integer number (176830200).

Almost surely, 2^671954741 is an apocalyptic number.

It is an amenable number.

671954741 is a deficient number, since it is larger than the sum of its proper divisors (35366059).

671954741 is a wasteful number, since it uses less digits than its factorization.

671954741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35366058.

The product of its digits is 211680, while the sum is 44.

The square root of 671954741 is about 25922.0898270182. The cubic root of 671954741 is about 875.8841635821.

The spelling of 671954741 in words is "six hundred seventy-one million, nine hundred fifty-four thousand, seven hundred forty-one".