32317661 has 4 divisors (see below), whose sum is σ = 32603772. Its totient is φ = 32031552.

The previous prime is 32317643. The next prime is 32317667. The reversal of 32317661 is 16671323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16556761 + 15760900 = 4069^2 + 3970^2 .

It is a cyclic number.

It is not a de Polignac number, because 32317661 - 2¹⁰ = 32316637 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 (32317667) 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, 142886 + ... + 143111.

It is an arithmetic number, because the mean of its divisors is an integer number (8150943).

Almost surely, 2^32317661 is an apocalyptic number.

It is an amenable number.

32317661 is a deficient number, since it is larger than the sum of its proper divisors (286111).

32317661 is a wasteful number, since it uses less digits than its factorization.

32317661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286110.

The product of its digits is 4536, while the sum is 29.

The square root of 32317661 is about 5684.8624433666. The cubic root of 32317661 is about 318.5272853557.

Adding to 32317661 its reverse (16671323), we get a palindrome (48988984).

The spelling of 32317661 in words is "thirty-two million, three hundred seventeen thousand, six hundred sixty-one".