6997405271 has 4 divisors (see below), whose sum is σ = 7023418200. Its totient is φ = 6971392344.

The previous prime is 6997405243. The next prime is 6997405279. The reversal of 6997405271 is 1725047996.

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

It is a cyclic number.

It is not a de Polignac number, because 6997405271 - 2¹⁰ = 6997404247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6997405279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13006061 + ... + 13006598.

It is an arithmetic number, because the mean of its divisors is an integer number (1755854550).

Almost surely, 2^6997405271 is an apocalyptic number.

6997405271 is a deficient number, since it is larger than the sum of its proper divisors (26012929).

6997405271 is a wasteful number, since it uses less digits than its factorization.

6997405271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26012928.

The product of its (nonzero) digits is 952560, while the sum is 50.

The square root of 6997405271 is about 83650.4947445023. The cubic root of 6997405271 is about 1912.6947946091.

The spelling of 6997405271 in words is "six billion, nine hundred ninety-seven million, four hundred five thousand, two hundred seventy-one".