921941 has 4 divisors (see below), whose sum is σ = 924000. Its totient is φ = 919884.

The previous prime is 921931. The next prime is 921959. The reversal of 921941 is 149129.

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: 149129 = 197 ⋅757.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-921941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 921941.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 921941.

It is not an unprimeable number, because it can be changed into a prime (921901) 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, 41 + ... + 1358.

It is an arithmetic number, because the mean of its divisors is an integer number (231000).

2⁹²¹⁹⁴¹ is an apocalyptic number.

It is an amenable number.

921941 is a deficient number, since it is larger than the sum of its proper divisors (2059).

921941 is a wasteful number, since it uses less digits than its factorization.

921941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058.

The product of its digits is 648, while the sum is 26.

The square root of 921941 is about 960.1775877409. The cubic root of 921941 is about 97.3272329427.

The spelling of 921941 in words is "nine hundred twenty-one thousand, nine hundred forty-one".