921494 has 12 divisors (see below), whose sum is σ = 1608084. Its totient is φ = 394884.

The previous prime is 921491. The next prime is 921497. The reversal of 921494 is 494129.

It is an interprime number because it is at equal distance from previous prime (921491) and next prime (921497).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921491) 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 in 5 ways as a sum of consecutive naturals, for example, 4604 + ... + 4799.

It is an arithmetic number, because the mean of its divisors is an integer number (134007).

2⁹²¹⁴⁹⁴ is an apocalyptic number.

921494 is a deficient number, since it is larger than the sum of its proper divisors (686590).

921494 is a wasteful number, since it uses less digits than its factorization.

921494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9419 (or 9412 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 921494 is about 959.9447900791. The cubic root of 921494 is about 97.3115008057.

The spelling of 921494 in words is "nine hundred twenty-one thousand, four hundred ninety-four".