921361 has 8 divisors (see below), whose sum is σ = 1077824. Its totient is φ = 771120.

The previous prime is 921353. The next prime is 921373. The reversal of 921361 is 163129.

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

It is not a de Polignac number, because 921361 - 2³ = 921353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (921331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1230 + ... + 1831.

It is an arithmetic number, because the mean of its divisors is an integer number (134728).

2⁹²¹³⁶¹ is an apocalyptic number.

It is an amenable number.

921361 is a deficient number, since it is larger than the sum of its proper divisors (156463).

921361 is a wasteful number, since it uses less digits than its factorization.

921361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111.

The product of its digits is 324, while the sum is 22.

The square root of 921361 is about 959.8755127619. The cubic root of 921361 is about 97.3068188970.

The spelling of 921361 in words is "nine hundred twenty-one thousand, three hundred sixty-one".