971347851 has 12 divisors (see below), whose sum is σ = 1437279480. Its totient is φ = 631770720.

The previous prime is 971347789. The next prime is 971347859. The reversal of 971347851 is 158743179.

It is not a de Polignac number, because 971347851 - 2¹¹ = 971345803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 971347797 and 971347806.

It is not an unprimeable number, because it can be changed into a prime (971347859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1315821 + ... + 1316558.

It is an arithmetic number, because the mean of its divisors is an integer number (119773290).

Almost surely, 2^971347851 is an apocalyptic number.

971347851 is a deficient number, since it is larger than the sum of its proper divisors (465931629).

971347851 is a wasteful number, since it uses less digits than its factorization.

971347851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632426 (or 2632423 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 971347851 is about 31166.4539368854. The cubic root of 971347851 is about 990.3565871870.

The spelling of 971347851 in words is "nine hundred seventy-one million, three hundred forty-seven thousand, eight hundred fifty-one".