5317661 has 8 divisors (see below), whose sum is σ = 5427000. Its totient is φ = 5209600.

The previous prime is 5317639. The next prime is 5317699. The reversal of 5317661 is 1667135.

It can be written as a sum of positive squares in 4 ways, for example, as 630436 + 4687225 = 794^2 + 2165^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5317661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5317601) 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, 13061 + ... + 13461.

It is an arithmetic number, because the mean of its divisors is an integer number (678375).

Almost surely, 2^5317661 is an apocalyptic number.

It is an amenable number.

5317661 is a deficient number, since it is larger than the sum of its proper divisors (109339).

5317661 is a wasteful number, since it uses less digits than its factorization.

5317661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639.

The product of its digits is 3780, while the sum is 29.

The square root of 5317661 is about 2306.0054206354. The cubic root of 5317661 is about 174.5447869868.

It can be divided in two parts, 531 and 7661, that added together give a 13-th power (8192 = 2¹³).

The spelling of 5317661 in words is "five million, three hundred seventeen thousand, six hundred sixty-one".