922661 has 4 divisors (see below), whose sum is σ = 931392. Its totient is φ = 913932.

The previous prime is 922643. The next prime is 922667. The reversal of 922661 is 166229.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 166229 = 7 ⋅23747.

It is a cyclic number.

It is not a de Polignac number, because 922661 - 2¹⁰ = 921637 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 922661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (922667) 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, 4205 + ... + 4418.

It is an arithmetic number, because the mean of its divisors is an integer number (232848).

2⁹²²⁶⁶¹ is an apocalyptic number.

It is an amenable number.

922661 is a deficient number, since it is larger than the sum of its proper divisors (8731).

922661 is a wasteful number, since it uses less digits than its factorization.

922661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8730.

The product of its digits is 1296, while the sum is 26.

The square root of 922661 is about 960.5524452106. The cubic root of 922661 is about 97.3525626089.

The spelling of 922661 in words is "nine hundred twenty-two thousand, six hundred sixty-one".