921392 has 10 divisors (see below), whose sum is σ = 1785228. Its totient is φ = 460688.

The previous prime is 921379. The next prime is 921407. The reversal of 921392 is 293129.

It is a zygodrome in base 2.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 921392.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28778 + ... + 28809.

2⁹²¹³⁹² is an apocalyptic number.

It is an amenable number.

921392 is a deficient number, since it is larger than the sum of its proper divisors (863836).

921392 is a wasteful number, since it uses less digits than its factorization.

921392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57595 (or 57589 counting only the distinct ones).

The product of its digits is 972, while the sum is 26.

The square root of 921392 is about 959.8916605534. The cubic root of 921392 is about 97.3079102093.

The spelling of 921392 in words is "nine hundred twenty-one thousand, three hundred ninety-two".