5217691 has 8 divisors (see below), whose sum is σ = 5629824. Its totient is φ = 4817280.

The previous prime is 5217689. The next prime is 5217697. The reversal of 5217691 is 1967125.

5217691 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 5217691 - 2¹ = 5217689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5217697) 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, 1995 + ... + 3796.

It is an arithmetic number, because the mean of its divisors is an integer number (703728).

Almost surely, 2^5217691 is an apocalyptic number.

5217691 is a deficient number, since it is larger than the sum of its proper divisors (412133).

5217691 is a wasteful number, since it uses less digits than its factorization.

5217691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861.

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

The square root of 5217691 is about 2284.2265649449. The cubic root of 5217691 is about 173.4440683766. Note that the first 3 decimals are identical.

The spelling of 5217691 in words is "five million, two hundred seventeen thousand, six hundred ninety-one".