923661 has 12 divisors (see below), whose sum is σ = 1412892. Its totient is φ = 579456.

The previous prime is 923653. The next prime is 923687. The reversal of 923661 is 166329.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 447561 + 476100 = 669^2 + 690^2 .

It is not a de Polignac number, because 923661 - 2³ = 923653 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (923641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2866 + ... + 3171.

It is an arithmetic number, because the mean of its divisors is an integer number (117741).

2⁹²³⁶⁶¹ is an apocalyptic number.

It is an amenable number.

923661 is a deficient number, since it is larger than the sum of its proper divisors (489231).

923661 is a wasteful number, since it uses less digits than its factorization.

923661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060 (or 6057 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 923661 is about 961.0728380305. The cubic root of 923661 is about 97.3877208497.

The spelling of 923661 in words is "nine hundred twenty-three thousand, six hundred sixty-one".