9223661 has 2 divisors, whose sum is σ = 9223662. Its totient is φ = 9223660.

The previous prime is 9223649. The next prime is 9223679. The reversal of 9223661 is 1663229.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7946761 + 1276900 = 2819^2 + 1130^2 .

It is a cyclic number.

It is not a de Polignac number, because 9223661 - 2⁶ = 9223597 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9223601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4611830 + 4611831.

It is an arithmetic number, because the mean of its divisors is an integer number (4611831).

Almost surely, 2^9223661 is an apocalyptic number.

It is an amenable number.

9223661 is a deficient number, since it is larger than the sum of its proper divisors (1).

9223661 is an equidigital number, since it uses as much as digits as its factorization.

9223661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 29.

The square root of 9223661 is about 3037.0480733765. The cubic root of 9223661 is about 209.7173900642.

The spelling of 9223661 in words is "nine million, two hundred twenty-three thousand, six hundred sixty-one".