671745701 has 8 divisors (see below), whose sum is σ = 775920384. Its totient is φ = 574755520.

The previous prime is 671745637. The next prime is 671745721. The reversal of 671745701 is 107547176.

It is a happy number.

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 671745701 - 2⁶ = 671745637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671745721) 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, 1795925 + ... + 1796298.

It is an arithmetic number, because the mean of its divisors is an integer number (96990048).

Almost surely, 2^671745701 is an apocalyptic number.

It is an amenable number.

671745701 is a deficient number, since it is larger than the sum of its proper divisors (104174683).

671745701 is a wasteful number, since it uses less digits than its factorization.

671745701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3592251.

The product of its (nonzero) digits is 41160, while the sum is 38.

The square root of 671745701 is about 25918.0574310653. The cubic root of 671745701 is about 875.7933271987.

The spelling of 671745701 in words is "six hundred seventy-one million, seven hundred forty-five thousand, seven hundred one".