921263 has 8 divisors (see below), whose sum is σ = 1081632. Its totient is φ = 768096.

The previous prime is 921259. The next prime is 921287. The reversal of 921263 is 362129.

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

It is not a de Polignac number, because 921263 - 2² = 921259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921203) 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, 1520 + ... + 2037.

It is an arithmetic number, because the mean of its divisors is an integer number (135204).

2⁹²¹²⁶³ is an apocalyptic number.

921263 is a deficient number, since it is larger than the sum of its proper divisors (160369).

921263 is a wasteful number, since it uses less digits than its factorization.

921263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601.

The product of its digits is 648, while the sum is 23.

The square root of 921263 is about 959.8244631181. The cubic root of 921263 is about 97.3033687813.

It can be divided in two parts, 92126 and 3, that added together give a palindrome (92129).

The spelling of 921263 in words is "nine hundred twenty-one thousand, two hundred sixty-three".