971655671 has 8 divisors (see below), whose sum is σ = 1117917600. Its totient is φ = 827257248.

The previous prime is 971655667. The next prime is 971655691. The reversal of 971655671 is 176556179.

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 971655671 - 2² = 971655667 is a prime.

It is a super-3 number, since 3×971655671³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971655691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464756 + ... + 466841.

It is an arithmetic number, because the mean of its divisors is an integer number (139739700).

Almost surely, 2^971655671 is an apocalyptic number.

971655671 is a deficient number, since it is larger than the sum of its proper divisors (146261929).

971655671 is a wasteful number, since it uses less digits than its factorization.

971655671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931753.

The product of its digits is 396900, while the sum is 47.

The square root of 971655671 is about 31171.3918681858. The cubic root of 971655671 is about 990.4611907601.

The spelling of 971655671 in words is "nine hundred seventy-one million, six hundred fifty-five thousand, six hundred seventy-one".