971504806 has 4 divisors (see below), whose sum is σ = 1457257212. Its totient is φ = 485752402.

The previous prime is 971504803. The next prime is 971504813. The reversal of 971504806 is 608405179.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971504801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242876200 + ... + 242876203.

It is an arithmetic number, because the mean of its divisors is an integer number (364314303).

Almost surely, 2^971504806 is an apocalyptic number.

971504806 is a deficient number, since it is larger than the sum of its proper divisors (485752406).

971504806 is a wasteful number, since it uses less digits than its factorization.

971504806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485752405.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 971504806 is about 31168.9718470148. The cubic root of 971504806 is about 990.4099264882.

The spelling of 971504806 in words is "nine hundred seventy-one million, five hundred four thousand, eight hundred six".