971806434 has 8 divisors (see below), whose sum is σ = 1943612880. Its totient is φ = 323935476.

The previous prime is 971806427. The next prime is 971806439. The reversal of 971806434 is 434608179.

It is a sphenic number, since it is the product of 3 distinct primes.

971806434 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (971806439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80983864 + ... + 80983875.

It is an arithmetic number, because the mean of its divisors is an integer number (242951610).

Almost surely, 2^971806434 is an apocalyptic number.

971806434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

971806434 is a wasteful number, since it uses less digits than its factorization.

971806434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161967744.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 971806434 is about 31173.8100655021. The cubic root of 971806434 is about 990.5124150716.

The spelling of 971806434 in words is "nine hundred seventy-one million, eight hundred six thousand, four hundred thirty-four".