942921 has 20 divisors (see below), whose sum is σ = 1610752. Its totient is φ = 538488.

The previous prime is 942917. The next prime is 942943. The reversal of 942921 is 129249.

942921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 942921 - 2² = 942917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (942901) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 265 + ... + 1398.

2⁹⁴²⁹²¹ is an apocalyptic number.

It is an amenable number.

942921 is a deficient number, since it is larger than the sum of its proper divisors (667831).

942921 is a wasteful number, since it uses less digits than its factorization.

942921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682 (or 1673 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 942921 is about 971.0411937709. The cubic root of 942921 is about 98.0599730090.

The spelling of 942921 in words is "nine hundred forty-two thousand, nine hundred twenty-one".