921371 has 4 divisors (see below), whose sum is σ = 1005144. Its totient is φ = 837600.

The previous prime is 921353. The next prime is 921373. The reversal of 921371 is 173129.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 173129 = 11 ⋅15739.

It is a cyclic number.

It is not a de Polignac number, because 921371 - 2¹⁴ = 904987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (921373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41870 + ... + 41891.

It is an arithmetic number, because the mean of its divisors is an integer number (251286).

2⁹²¹³⁷¹ is an apocalyptic number.

921371 is a deficient number, since it is larger than the sum of its proper divisors (83773).

921371 is a wasteful number, since it uses less digits than its factorization.

921371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83772.

The product of its digits is 378, while the sum is 23.

The square root of 921371 is about 959.8807217566. The cubic root of 921371 is about 97.3071709359.

The spelling of 921371 in words is "nine hundred twenty-one thousand, three hundred seventy-one".