921266 has 4 divisors (see below), whose sum is σ = 1381902. Its totient is φ = 460632.

The previous prime is 921259. The next prime is 921287. The reversal of 921266 is 662129.

921266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 525625 + 395641 = 725^2 + 629^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230315 + ... + 230318.

2⁹²¹²⁶⁶ is an apocalyptic number.

921266 is a deficient number, since it is larger than the sum of its proper divisors (460636).

921266 is a wasteful number, since it uses less digits than its factorization.

921266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460635.

The product of its digits is 1296, while the sum is 26.

The square root of 921266 is about 959.8260259026. The cubic root of 921266 is about 97.3034744007.

The spelling of 921266 in words is "nine hundred twenty-one thousand, two hundred sixty-six".