921464 has 8 divisors (see below), whose sum is σ = 1727760. Its totient is φ = 460728.

The previous prime is 921463. The next prime is 921467. The reversal of 921464 is 464129.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 921464.

It is not an unprimeable number, because it can be changed into a prime (921463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57584 + ... + 57599.

It is an arithmetic number, because the mean of its divisors is an integer number (215970).

2⁹²¹⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

921464 is a deficient number, since it is larger than the sum of its proper divisors (806296).

921464 is a wasteful number, since it uses less digits than its factorization.

921464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115189 (or 115185 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 921464 is about 959.9291640533. The cubic root of 921464 is about 97.3104447755.

The spelling of 921464 in words is "nine hundred twenty-one thousand, four hundred sixty-four".