6523971 has 8 divisors (see below), whose sum is σ = 9210384. Its totient is φ = 4093440.

The previous prime is 6523969. The next prime is 6524009. The reversal of 6523971 is 1793256.

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

It is not a de Polignac number, because 6523971 - 2¹ = 6523969 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

6523971 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6523171) 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, 63910 + ... + 64011.

It is an arithmetic number, because the mean of its divisors is an integer number (1151298).

Almost surely, 2^6523971 is an apocalyptic number.

6523971 is a deficient number, since it is larger than the sum of its proper divisors (2686413).

6523971 is a wasteful number, since it uses less digits than its factorization.

6523971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127941.

The product of its digits is 11340, while the sum is 33.

The square root of 6523971 is about 2554.2065304121. The cubic root of 6523971 is about 186.8546918495.

The spelling of 6523971 in words is "six million, five hundred twenty-three thousand, nine hundred seventy-one".