10317661 has 2 divisors, whose sum is σ = 10317662. Its totient is φ = 10317660.

The previous prime is 10317653. The next prime is 10317683. The reversal of 10317661 is 16671301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5433561 + 4884100 = 2331^2 + 2210^2 .

It is an emirp because it is prime and its reverse (16671301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10317661 - 2³ = 10317653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10317611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5158830 + 5158831.

It is an arithmetic number, because the mean of its divisors is an integer number (5158831).

Almost surely, 2^10317661 is an apocalyptic number.

10317661 is the 1437-th centered decagonal number.

It is an amenable number.

10317661 is a deficient number, since it is larger than the sum of its proper divisors (1).

10317661 is an equidigital number, since it uses as much as digits as its factorization.

10317661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 10317661 is about 3212.1116107632. Note that the first 3 decimals coincide. The cubic root of 10317661 is about 217.7009970916.

Adding to 10317661 its reverse (16671301), we get a palindrome (26988962).

The spelling of 10317661 in words is "ten million, three hundred seventeen thousand, six hundred sixty-one".