5197661 has 8 divisors (see below), whose sum is σ = 5993664. Its totient is φ = 4415040.

The previous prime is 5197639. The next prime is 5197663. The reversal of 5197661 is 1667915.

5197661 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 de Polignac number, because none of the positive numbers 2^k-5197661 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 (5197663) 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, 2495 + ... + 4076.

It is an arithmetic number, because the mean of its divisors is an integer number (749208).

Almost surely, 2^5197661 is an apocalyptic number.

It is an amenable number.

5197661 is a deficient number, since it is larger than the sum of its proper divisors (796003).

5197661 is a wasteful number, since it uses less digits than its factorization.

5197661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6691.

The product of its digits is 11340, while the sum is 35.

The square root of 5197661 is about 2279.8379328365. The cubic root of 5197661 is about 173.2218411049.

The spelling of 5197661 in words is "five million, one hundred ninety-seven thousand, six hundred sixty-one".