5271691 has 4 divisors (see below), whose sum is σ = 5287672. Its totient is φ = 5255712.

The previous prime is 5271677. The next prime is 5271701. The reversal of 5271691 is 1961725.

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 5271691 - 2⁹ = 5271179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5271631) 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, 7485 + ... + 8158.

It is an arithmetic number, because the mean of its divisors is an integer number (1321918).

Almost surely, 2^5271691 is an apocalyptic number.

5271691 is a deficient number, since it is larger than the sum of its proper divisors (15981).

5271691 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 5271691 = (1127659)₁₃.

5271691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15980.

The product of its digits is 3780, while the sum is 31.

The square root of 5271691 is about 2296.0163326945. The cubic root of 5271691 is about 174.0403636486.

The spelling of 5271691 in words is "five million, two hundred seventy-one thousand, six hundred ninety-one".