921064 has 8 divisors (see below), whose sum is σ = 1727010. Its totient is φ = 460528.

The previous prime is 921031. The next prime is 921073. The reversal of 921064 is 460129.

921064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 736164 + 184900 = 858^2 + 430^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57559 + ... + 57574.

2⁹²¹⁰⁶⁴ is an apocalyptic number.

It is an amenable number.

921064 is a deficient number, since it is larger than the sum of its proper divisors (805946).

921064 is a wasteful number, since it uses less digits than its factorization.

921064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115139 (or 115135 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 921064 is about 959.7207927309. The cubic root of 921064 is about 97.2963621810.

It can be divided in two parts, 92 and 1064, that added together give a square (1156 = 34²).

The spelling of 921064 in words is "nine hundred twenty-one thousand, sixty-four".