923642 has 8 divisors (see below), whose sum is σ = 1401300. Its totient is φ = 456544.

The previous prime is 923641. The next prime is 923653. The reversal of 923642 is 246329.

It can be written as a sum of positive squares in 2 ways, for example, as 923521 + 121 = 961^2 + 11^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×923642² = 1706229088328, which contains 22 as substring.

It is an Ulam number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2417 + ... + 2772.

2⁹²³⁶⁴² is an apocalyptic number.

923642 is a deficient number, since it is larger than the sum of its proper divisors (477658).

923642 is a wasteful number, since it uses less digits than its factorization.

923642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5280.

The product of its digits is 2592, while the sum is 26.

The square root of 923642 is about 961.0629531930. The cubic root of 923642 is about 97.3870530797.

The spelling of 923642 in words is "nine hundred twenty-three thousand, six hundred forty-two".