5001691 has 2 divisors, whose sum is σ = 5001692. Its totient is φ = 5001690.

The previous prime is 5001679. The next prime is 5001701. The reversal of 5001691 is 1961005.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5001691 is a prime.

It is not a weakly prime, because it can be changed into another prime (5001671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500845 + 2500846.

It is an arithmetic number, because the mean of its divisors is an integer number (2500846).

Almost surely, 2^5001691 is an apocalyptic number.

5001691 is a deficient number, since it is larger than the sum of its proper divisors (1).

5001691 is an equidigital number, since it uses as much as digits as its factorization.

5001691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 5001691 is about 2236.4460646302. The cubic root of 5001691 is about 171.0168696237.

Adding to 5001691 its reverse (1961005), we get a palindrome (6962696).

The spelling of 5001691 in words is "five million, one thousand, six hundred ninety-one".